{"id":"F2006L01522","name":"Vehicle Standard (Australian Design Rule 4/04 – Seatbelts) 2006","slug":"vehicle-standard-australian-design-rule-4-04-seatbelts-2006","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":59186,"registerId":"commonwealth-F2006L01522-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Figure 1","sectionType":"section","heading":"Figure 1","content":"##### \nFigure 1\n\n![](image.006.png)\n\nColours:\n\n\\- the pictogram is red\n\n\\- seat, child seat and contour line of the airbag are black\n\n\\- the word airbag as well as the airbag are white.\n\n8.1.9. The requirements of paragraph 8.1.8. shall not apply if the vehicle is fitted with a mechanism which senses automatically the presence of any rearward-facing child restraint, and ensures that the airbag will not be deployed when such a child restraint system is fitted.\n\n8.1.10. In the case of seats capable of being turned to or placed in other orientations, designed for use when the vehicle is stationary, the requirements of paragraph 8.1.1. shall only apply to those orientations designated for normal use when the vehicle is travelling on a road, in accordance with this Regulation.\n\n8.2. General requirements\n\n8.2.1. Safety-belts, restraint systems, and ISOFIX child restraint systems according to table 2 of Annex 17 - Appendix 3, shall be fixed to anchorages conforming to the specifications of Regulation No. 14, such as the design and dimensional characteristics, the number of anchorages, and the strength requirements.\n\n8.2.2. The safety-belts, restraint systems, child restraint systems and ISOFIX child restraint systems recommended by the manufacturer according to tables 1 and 2 of Annex 17 - Appendix 3, shall be so installed that they will work satisfactorily and reduce the risk of bodily injury in the event of an accident. In particular they shall be so installed that:\n\n8.2.2.1. The straps are not liable to assume a dangerous configuration;\n\n8.2.2.2. That the danger of a correctly positioned belt slipping from the shoulder of a wearer as a result of his/her forward movement is reduced to a minimum.\n\n8.2.2.3. The risk of the strap deteriorating through contact with sharp parts of the vehicle or seat structure, child restraint systems or ISOFIX child restraint systems recommended by the manufacturer according to tables 1 and 2 of Annex 17 - Appendix 3, is reduced to a minimum.\n\n8.2.2.4. The design and installation of every safety-belt provided for each seating position shall be such as to be readily available for use. Furthermore, where the complete seat or the seat cushion and/or the seat back can be folded to permit access to rear of the vehicle or to goods or luggage compartment, after folding and restoring those seats to the seating position, the safety-belts provided for those seats shall be accessible for use or can be easily recovered from under or behind the seat, by one person, according to instructions in the vehicle users handbook, without the need for that person to have training or practice.\n\n8.2.2.5. The technical service shall verify that, with the buckle tongue engaged in the buckle and no occupant in the seat:\n\n8.2.2.5.1. The possible slack in the belt does not prevent the correct installation of child restraint systems recommended by the manufacturer, and\n\n8.2.2.5.2. In the case of three-point belts, a tension of at least 50 N can be established in the lap section of the belt by external application of tension in the diagonal section of the belt.\n\n8.3. Special requirements for rigid parts incorporated in safety-belts or restraint systems\n\n8.3.1. Rigid parts, such as the buckles, adjusting devices and attachments, shall not increase the risk of bodily injury to the wearer or to other occupants of the vehicle in the event of an accident.\n\n8.3.2. The device for releasing the buckle shall be clearly visible to the wearer and within his easy reach and shall be so designed that it cannot be opened inadvertently or accidentally. The buckle shall also be located in such a position that it is readily accessible to a rescuer needing to release the wearer in an emergency.\n\nThe buckle shall be so installed that, both when not under load and when sustaining the wearer's mass, it is capable of being released by the wearer with a single simple movement of either hand in one direction.\n\nIn the case of a safety-belts or restraint systems for front outboard seating positions, except if these are harness belts, the buckle shall also be capable of being locked in the same manner.\n\nA check shall be made to ensure that, if the buckle is in contact with the wearer, the width of the contact surface is not less than 46 mm.\n\nA check shall be made to ensure that, if the buckle is in contact with the wearer, the contact surface satisfies the requirements of paragraph 6.2.2.1. of this Regulation.\n\n8.3.3. When the belt is being worn, it shall either adjust automatically to fit the wearer or be so designed that the manual adjusting device is readily accessible to the wearer when seated and is convenient and easy to use. It shall also be possible for it to be tightened with one hand to suit the build of the wearer and the position of the vehicle seat.\n\n8.3.4. Safety-belts or restraint systems incorporating retractors shall be so installed that the retractors are able to operate correctly and stow the strap efficiently.\n\n8.3.5. In order to inform vehicle user(s) of the provisions made for the transport of children, vehicles of categories M1 and N1 shall meet the information requirements of Annex 17. Any vehicle of category M1 must be equipped with ISOFIX positions, in accordance with the relevant prescriptions of Regulation No. 14.\n\nThe first ISOFIX position shall allow at least the installation of one out of the three forward-facing fixtures as defined in Appendix 2 of Annex 17; the equipped with ISOFIX positions, in accordance with the relevant second ISOFIX position shall allow at least the installation of one out of the three rear-facing fixtures as defined in Appendix 2 of Annex 17. For this second ISOFIX position, in case where the installation of the rear-facing fixture is not possible on the second row of seats of the vehicle due to its design, the installation of one out of the six fixtures is allowed in any position of the vehicle.\n\n9. CONFORMITY OF PRODUCTION\n\nThe conformity of production procedures shall comply with those set out in the Agreement, Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:\n\n9.1. Every vehicle type or safety-belt or restraint system approved under this Regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraphs 6., 7. and 8. above.\n\n9.2. The minimum requirements for conformity of production control procedures set forth in Annex 14 to this Regulation shall be complied with.\n\n9.3. The authority which has granted type-approval may at any time verify the conformity control methods applied in each production facility. The normal frequency of these verifications shall be twice a year.\n\n10. PENALTIES FOR NON-CONFORMITY OF PRODUCTION\n\n10.1. The approval granted in respect of a vehicle or a type of belt or restraint system may be withdrawn if the requirement laid down in paragraph 9.1. above is not complied with, or if the safety-belt(s) or restraint system(s) selected have failed to pass the checks prescribed in paragraph 9.2. above.\n\n10.2. If a Contracting Party to the Agreement applying this Regulation withdraws an approval it has previously granted, it shall forthwith so notify the other Contracting Parties applying this Regulation by means of a communication form conforming to the model in Annex 1A or Annex 1B to this Regulation (as appropriate).\n\n11. MODIFICATIONS AND EXTENSION OF APPROVAL OF THE VEHICLE TYPE OR SAFETY-BELT OR RESTRAINT SYSTEM TYPE\n\n11.1. Every modification of the vehicle type or the belt or restraint system or both shall be notified to the administrative department which approved the vehicle type or safety-belt or restraint system type. The department may then either:\n\n11.1.1. Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the vehicle or safety-belt or restraint system still complies with the requirements; or\n\n11.1.2. Require a further test report from the technical service responsible for conducting the tests.\n\n11.2. Without prejudice to the provisions of paragraph 11.1. above, a variant of the vehicle whose mass in the running order is less than that of the vehicle subjected to the approval test shall not be regarded as a modification of the vehicle type.\n\n11.3. Confirmation or refusal of approval, specifying the alterations, shall be communicated by the procedure specified in paragraph 5.2.3. or 5.3.3. above to the Parties to the Agreement applying this Regulation.\n\n11.4. The competent authority issuing the extension of approval shall assign a series number for such an extension and inform thereof the other parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 1A or 1B to this Regulation.\n\n12. PRODUCTION DEFINITELY DISCONTINUED\n\nIf the holder of the approval completely ceases to manufacture a device approved in accordance with this Regulation, he shall so inform the authority which granted the approval. Upon receiving the relevant communication that authority shall inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 1A or 1B to this Regulation.\n\n13. INSTRUCTIONS\n\nIn the case of safety-belt type supplied separately from vehicle, the packaging and installation instructions must clearly state the vehicle type(s) for which it is intended.\n\n14. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS\n\nThe Parties to the 1958 Agreement applying this Regulation shall communicate to the United Nations Secretariat the names and addresses of the technical services responsible for conducting approval tests and of the administrative departments which grant approval and to which forms certifying approval or refusal or extension or withdrawal of approval, issued in other countries, are to be sent.\n\n15. TRANSITIONAL PROVISIONS\n\n15.1. Approvals of vehicle type\n\n15.1.1. As from the official date of entry into force of Supplement 15 to the 04 series of amendments, no Contracting Party applying this Regulation shall refuse to grant ECE approvals under this Regulation as modified by Supplement 15 to the 04 series of amendments.\n\n15.1.2. As from 2 years after the entry into force of Supplement 15 to the 04 series of amendments to this Regulation, Contracting Parties applying this Regulation shall grant ECE approvals only if the requirements of this Regulation, as amended by Supplement 15 to the 04 series of amendments are satisfied.\n\n15.1.3. As from 7 years after the entry into force of Supplement 15 to the 04 series of amendments to this Regulation, Contracting Parties applying this Regulation may refuse to recognize approvals which were not granted in accordance with Supplement 15 to the 04 series of amendments to this Regulation.\n\n15.1.3.1. However, as from 1 October 2000, for vehicles of categories M1 and N1, Contracting Parties applying this Regulation may refuse to recognize ECE approvals which were not granted in accordance with Supplement 8 to the 04 series of amendments to this Regulation, if the information requirements of paragraph 8.3.5. and Annex 17 are not met.\n\n15.2. Installation of safety-belts\n\nThese transitional provisions only apply to the installation of safety-belts on vehicles and do not change the mark of the safety-belt.\n\n15.2.1. As from the official date of entry into force of Supplement 12 to the 04 series of amendments, no Contracting Party applying this Regulation shall refuse to grant ECE approvals under this Regulation as modified by Supplement 12 to the 04 series of amendments.\n\n15.2.2. Upon expiration of a period of 36 months following the official date of entry into force referred to in paragraph 15.2.1. above, the Contracting Parties applying this Regulation shall grant approval only if the vehicle type satisfies the requirements of this Regulation as amended by the Supplement 12 to the 04 series of amendments.\n\n15.2.3. Upon the expiration of a period of 60 months following the official date of entry into force referred to in paragraph 15.2.1. above, the Contracting Parties applying this Regulation may refuse to recognize approvals not granted in accordance with Supplement 12 to the 04 series of amendments to this Regulation.\n\n15.2.4. As from the official date of entry into force of Supplement 16 to the 04 series of amendments, no Contracting Party applying this Regulation shall refuse to grant ECE approvals under this Regulation as modified by Supplement 16 to the 04 series of amendments.\n\n15.2.5. Upon expiration of a period of 36 months following the official date of entry into force referred to in paragraph 15.3.1. above, the Contracting Parties applying this Regulation shall grant approval only if the vehicle type satisfies the requirements of this Regulation as amended by the Supplement 14 to the 04 series of amendments.\n\n15.2.6. Upon the expiration of a period of 60 months following the official date of entry into force referred to in paragraph 15.3.1. above, the Contracting Parties applying this Regulation may refuse to recognize approvals not granted in accordance with Supplement 14 to the 04 series of amendments to this Regulation.\n\n15.2.7. After 16 July 2006, the Contracting Parties applying this Regulation shall grant approval only if the vehicle type satisfies the requirements of this Regulation as amended by the Supplement 16 to the 04 series of amendments.\n\n1.5.2.8. After 16 July 2008, the Contracting Parties applying this Regulation may refuse to recognize approvals to vehicles of category N1 not granted in accordance with Supplement 16 to the 04 series of amendments to this Regulation.\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":0},{"sectionNumber":"Annex 2","sectionType":"section","heading":"Annex 2","content":"##### Annex 2\n\nARRANGEMENTS OF THE APPROVAL MARKS\n\n1. Arrangements of the vehicle approval marks concerning the installation of safety-belts\n\nModel A\n\n(See paragraph 5.2.4. of this Regulation)\n\n![](image.010.png)\n\na = 8 mm min.\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to safety-belts, been approved in the Netherlands (E4) pursuant to Regulation No. 16. The approval number indicates that the approval was granted according to the requirements of Regulation No. 16 as amended by the 04 series of amendments.\n\nModel B\n\n(See paragraph 5.2.5. of this Regulation)\n\n![](image.011.png)\n\na = 8 mm min.\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved in the Netherlands (E4) pursuant to Regulations Nos. 16 and 52. 1[\\[/ The approval numbers indicate that, at the dates when the respective approvals were given, Regulation No. 16 included the 04 series of amendments and Regulation No. 52 the 01 series of amendments. \\]](#_ftn9)\n\n2. Arrangements of the safety-belt approval marks (See paragraph 5.3.5. of this Regulation)\n\n![](image.012.png)\n\n![](image.013.png)\n\na = 8 mm min.\n\nThe belt bearing the above approval mark is a three‑point belt (\"A\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E4) under the number 042439, the Regulation already incorporating the 04 series of amendments at the time of approval.","sortOrder":1},{"sectionNumber":"B  4 m","sectionType":"section","heading":"B  4 m","content":"###### B  4 m\n\n![](image.014.png)\n\nThe belt bearing the above approval mark is a lap belt (\"B\"), fitted with a retractor, type 4, with multiple sensitivity (m) and approved in the Netherlands (E4) under the number 042489, the Regulation already incorporating the 04 series of amendments at the time of approval.\n\nNOTE:The approval number and additional symbol(s) must be placed close to the circle and either above or below the \"E\" or to left or right of that letter. The digits of the approval number must be on the same side of the \"E\" and orientated in the same direction. The additional symbol(s) must be diametrically opposite the approval number. The use of roman numerals as approval numbers should be avoided so as to prevent any confusion with other symbols.\n\n![](image.015.png)\n\nThe belt bearing the above approval mark is a special type belt (\"S\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E4) under the number 0422439, the Regulation already incorporating the 04 series of amendments at the time of approval.\n\n![](image.016.png)\n\nThe belt bearing the above approval mark is part of a restraint system (\"Z\"), it is a special type belt (\"S\") fitted with an energy absorber (\"e\"). It has been approved in the Netherlands (E4) under the number 0424391, the Regulation already incorporating the 04 series of amendments at the time of approval.\n\n \n\n![](image.017.png)![](image.018.png)\n\n![](image.019.png)\n\na = 8 mm min.\n\n![](image.020.png)\n\nThe belt bearing this type‑approval mark is a three‑point belt (\"A\") with a multiple‑sensitivity (\"m\") type 4N (\"r4N\") retractor, in respect of which type‑approval was granted in the Netherlands (\"E4\") under number 042439, the Regulation already incorporating the 04 series of amendments at the time of approval. This belt shall not be fitted to vehicles of category M1.\n\n \n\n![](image.021.png)\n\nThe safety-belt bearing this type-approval mark is a three-point belt (\"A\") fitted with an energy absorber (\"e\"), approved as meeting the specific requirements of paragraph 6.4.1.3.3. of this Regulation, and with a multiple-sensitivity (\"m\") type 4 (\"r4\") retractor, in respect of which type approval was granted in the Netherlands (\"E4\") under the approval number 042439. The first two digits indicate that the Regulation already incorporated the 04 series of amendments at the time of the approval. This safety-belt has to be fitted to a vehicle equipped with an airbag in the given seating position.\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":2},{"sectionNumber":"Annex 3","sectionType":"section","heading":"Annex 3","content":"##### Annex 3\n\nDIAGRAM OF AN APPARATUS TO TEST DURABILITY OF RETRACTOR MECHANISM\n\n![](image.022.png)\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":3},{"sectionNumber":"Annex 4","sectionType":"section","heading":"Annex 4","content":"##### Annex 4\n\nDIAGRAM OF AN APPARATUS TO TEST LOCKING OF EMERGENCY LOCKING RETRACTORS\n\nA suitable apparatus is illustrated in the figure and consists of a motor‑driven cam, the follower of which is attached by wires to a small trolley mounted on a track. The cam design and motor speed combination is such as to give the required acceleration at a rate of increase of acceleration as specified in paragraph 7.6.2.2. of this Regulation and the stroke is arranged to be in excess of the maximum permitted webbing movement before locking.\n\nOn the trolley a carrier is mounted which can be swivelled to enable the retractor to be mounted in varying positions relative to the direction of movement of the trolley.\n\nWhen testing retractors for sensitivity to strap movement the retractor is mounted on a suitable fixed bracket and the strap is attached to the trolley.\n\nWhen carrying out the above tests any brackets, etc. supplied by the manufacturer or his accredited representative shall be incorporated in the test installation to simulate as closely as possible the intended installation in a vehicle.\n\nAny additional brackets, etc. that may be required to simulate the installation as intended in the vehicle shall be provided by the manufacturer or his accredited representative.\n\n![](image.023.png)\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":4},{"sectionNumber":"Figure 2","sectionType":"section","heading":"Figure 2","content":"##### \nFigure 2\n\nSTOPPING DEVICE\n\n(Assembled)\n\n![](image.026.jpeg)\n\n \nFigure 3\n\nSTOPPING DEVICE\n\n(Polyurethane tube)\n\n![](image.027.jpeg)\n\n \nFigure 4\n\nSTOPPING DEVICE\n\n(Olive-shaped knob)\n\n![](image.028.jpeg)\n\nSurface finish ![](image.029.png) Interference tolerance  0.1\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":5},{"sectionNumber":"Table 2","sectionType":"section","heading":"Table 2","content":"##### Table 2\n\n| Components of manikin | Mass in kg |\n| ------------------------------------------------------------------------------------------ | ------------------------------------------------ |\n| Head and neckTorso and armsThighsLower leg and footTotal mass including correction weights | 4.6 + 0.340.3 + 1.016.2 + 0.59.0 + 0.575.5 + 1.0 |\n\n \nFigure 1\n\n![](image.030.png)","sortOrder":6},{"sectionNumber":"Annex 8","sectionType":"section","heading":"Annex 8","content":"##### Annex 8\n\nDESCRIPTION OF CURVE OF TROLLEY'S DECELERATION AS A FUNCTION OF TIME\n\n(Curve for testing stopping devices)\n\n![](image.034.png)\n\nThe deceleration curve of the trolley weighted with inert mass to produce a total mass of 455 kg + 20 kg for safety‑belt tests and 910 + 40 kg for restraining system tests where the nominal mass of the trolley and vehicle structure is 800 kg must remain within the hatched area above. If necessary, the nominal mass of the trolley and attached vehicle structure can be increased by increments of 200 kg, in which case, an additional inert mass of 28 kg per increment shall be added. In no case shall the total mass of the trolley and vehicle structure and inert masses differ from the nominal value for calibration tests by more than + 40 kg. During calibration of the stopping device, the speed of the trolley shall be 50 km/h + 1 km/h and the stopping distance shall be 40 cm + 2 cm. In both the above cases the calibration and measuring procedures shall correspond to those defined in the International Standard ISO 6487:1980; the measuring equipment shall correspond to the specification of a data channel with a channel frequency class (CFC) 60.\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":8},{"sectionNumber":"Figure 1: Type I procedure","sectionType":"section","heading":"Figure 1: Type I procedure","content":"##### Figure 1: Type I procedure\n\n![](image.036.jpeg)\n\n \n\n![](image.037.jpeg)\n\n \nFigure 2 : Type 2 procedure\n\n![](image.038.png)\n\n \n![](image.039.jpeg)\n\n \nFigure 3: Type 3 procedure and micro‑slip test\n\nTotal travel: 300  20 mm\n\n![](image.040.png)\n\nThe load of 5 daN on the testing device shall be vertically guided in such a way as to avoid load-swing and twisting of the strap.\n\nThe attaching device shall be fixed to the load of 5 daN in the same manner as in a vehicle.\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":9},{"sectionNumber":"Annex 15","sectionType":"section","heading":"Annex 15","content":"##### Annex 15\n\nPROCEDURE FOR DETERMINING THE \"H\" POINT AND THE ACTUAL\n\nTORSO ANGLE FOR SEATING POSITIONS IN MOTOR VEHICLES\n\n1. PURPOSE\n\nThe procedure described in this annex is used to establish the \"H\" point location and the actual torso angle for one or several seating positions in a motor vehicle and to verify the relationship of measured data to design specifications given by the vehicle manufacturer. [\\[1\\]](#_ftn11)/\n\n2. DEFINITIONS\n\nFor the purposes of this annex:\n\n2.1. \"Reference data\" means one or several of the following characteristics of a seating position:\n\n2.1.1. the \"H\" point and the \"R\" point and their relationship,\n\n2.1.2. the actual torso angle and the design torso angle and their relationship.\n\n2.2. \"Three‑dimensional 'H' point machine\" (3‑D H machine) means the device used for the determination of \"H\" points and actual torso angles. This device is described in Appendix 1 to this annex;\n\n2.3. \" 'H' point\" means the pivot centre of the torso and the thigh of the 3‑D H machine installed in the vehicle seat in accordance with paragraph 4 below. The \"H\" point is located in the centre of the centreline of the device which is between the \"H\" point sight buttons on either side of the 3‑D H machine. The \"H\" point corresponds theoretically to the \"R\" point (for tolerances see paragraph 3.2.2. below). Once determined in accordance with the procedure described in paragraph 4., the \"H\" point is considered fixed in relation to the seat‑cushion structure and to move with it when the seat is adjusted;\n\n2.4. \" 'R' point\" or \"seating reference point\" means a design point defined by the vehicle manufacturer for each seating position and established with respect to the three‑dimensional reference system;\n\n2.5. \"Torso‑line\" means the centreline of the probe of the 3‑D H machine with the probe in the fully rearward position;\n\n2.6. \"Actual torso angle\" means the angle measured between a vertical line through the \"H\" point and the torso line using the back angle quadrant on the 3‑D H machine. The actual torso angle corresponds theoretically to the design torso angle (for tolerances see paragraph 3.2.2. below):\n\n2.7. \"Design torso angle\" means the angle measures between a vertical line through the \"R\" point and the torso line in a position which corresponds to the design position of the seat‑back established by the vehicle manufacturer;\n\n2.8. \"Centreplane of occupant\" (C/LO) means the median plane of the 3‑D H machine positioned in each designated seating position; it is represented by the co‑ordinate of the \"H\" point on the \"Y\" axis. For individual seats, the centreplane of the seat coincides with the centreplane of the occupant. For other seats, the centreplane of the occupant is specified by the manufacturer;\n\n2.9. \"Three‑dimensional reference system\" means a system as described in Appendix 2 to this annex;\n\n2.10. \"Fiducial marks\" are physical points (holes, surfaces, marks or indentations) on the vehicle body as defined by the manufacturer;\n\n2.11. \"Vehicle measuring attitude\" means the position of the vehicle as defined by the co‑ordinates of fiducial marks in the three‑dimensional reference system.\n\n3. REQUIREMENTS\n\n3.1. Data presentation\n\nFor each seating position where reference data are required in order to demonstrate compliance with the provisions of the present Regulation, all or an appropriate selection of the following data shall be presented in the form indicated in Appendix 3 to this annex:\n\n3.1.1. the co‑ordinates of the \"R\" point relative to the three‑dimensional reference system;\n\n3.1.2. the design torso angle;\n\n3.1.3. all indications necessary to adjust the seat (if it is adjustable) to the measuring position set out in paragraph 4.3. below.\n\n3.2. Relationship between measured data and design specifications\n\n3.2.1. The co‑ordinates of the \"H\" point and the value of the actual torso angle obtained by the procedure set out in paragraph 4. below shall be compared, respectively, with the co‑ordinates of the \"R\" point and the value of the design torso angle indicated by the vehicle manufacturer.\n\n3.2.2. The relative positions of the \"R\" point and the \"H\" point and the relationship between the design torso angle and the actual torso angle shall be considered satisfactory for the seating position in question if the \"H\" point, as defined by its co‑ordinates, lies within a square of 50 mm side length with horizontal and vertical sides whose diagonals intersect at the \"R\" point, and if the actual torso angle is within 5° of the design torso angle.\n\n3.2.3. If these conditions are met, the \"R\" point and the design torso angle, shall be used to demonstrate compliance with the provisions of this Regulation.\n\n3.2.4. If the \"H\" point or the actual torso angle does not satisfy the requirements of paragraph 3.2.2. above, the \"H\" point and the actual torso angle shall be determined twice more (three times in all). If the results of two of these three operations satisfy the requirements, the conditions of paragraph 3.2.3. above shall apply.\n\n3.2.5. If the results of at least two of the three operations described in paragraph 3.2.4. above do not satisfy the requirements of paragraph 3.2.2. above, or if the verification cannot take place because the vehicle manufacturer has failed to supply information regarding the position of the \"R\" point or regarding the design torso angle, the centroid of the three measured points or the average of the three measured angles shall be used and be regarded as applicable in all cases where the \"R\" point or the design torso angle is referred to in this Regulation.\n\n4. PROCEDURE FOR \"H\" POINT AND ACTUAL TORSO ANGLE DETERMINATION\n\n4.1. The vehicle shall be preconditioned at the manufacturer's discretion, at a temperature of 20 + 10 °C to ensure that the seat material reached room temperature. If the seat to be checked has never been sat upon, a 70 to 80 kg person or device shall sit on the seat twice for one minute to flex the cushion and back. At the manufacturer's request, all seat assemblies shall remain unloaded for a minimum period of 30 minutes prior to installation of the 3‑D H machine.\n\n4.2. The vehicle shall be at the measuring attitude defined in paragraph 2.11. above.\n\n4.3. The seat, if it is adjustable, shall be adjusted first to the rearmost normal driving or riding position, as indicated by the vehicle manufacturer, taking into consideration only the longitudinal adjustment of the seat, excluding seat travel used for purposes other than normal driving or riding positions. Where other modes of seat adjustment exist (vertical, angular, seat‑back, etc.) these will then be adjusted to the position specified by the vehicle manufacturer. For suspension seats, the vertical position shall be rigidly fixed corresponding to a normal driving position as specified by the manufacturer.\n\n4.4. The area of the seating position contacted by the 3‑D H machine shall be covered by a muslin cotton, of sufficient size and appropriate texture, described as a plain cotton fabric having 18.9 threads per cm2 and weighing 0.228 kg/m2 or knitted or non‑woven fabric having equivalent characteristics. If the test is run on a seat outside the vehicle, the floor on which the seat is placed shall have the same essential characteristics [\\[2\\]](#_ftn12)/ as the floor of the vehicle in which the seat is intended to be used.\n\n4.5. Place the seat and back assembly of the 3‑D H machine so that the centreplane of the occupant (C/LO) coincides with the centreplane of the 3‑D H machine. At the manufacturer's request, the 3‑D H machine may be moved inboard with respect to the C/LO if the 3‑D H machine is located so far outboard that the seat edge will not permit levelling of the 3‑D H machine.\n\n4.6. Attach the foot and lower leg assemblies to the seat pan assembly, either individually or by using the T‑bar and lower leg assembly. A line through the \"H\" point sight buttons shall be parallel to the ground and perpendicular to the longitudinal centreplane of the seat.\n\n4.7. Adjust the feet and leg positions of the 3‑D H machine as follows:\n\n4.7.1. Designated seating position: driver and outside front passenger\n\n4.7.1.1. Both feet and leg assemblies shall be moved forward in such a way that the feet take up natural positions on the floor, between the operating pedals if necessary. Where possible the left foot shall be located approximately the same distance to the left of the centreplane of the 3‑D H machine as the right foot is to the right. The spirit level verifying the transverse orientation of the 3‑D H machine is brought to the horizontal by readjustment of the seat pan if necessary, or by adjusting the leg and foot assemblies towards the rear. The line passing through the \"H\" point sight buttons shall be maintained perpendicular to the longitudinal centreplane of the seat.\n\n4.7.1.2. If the left leg cannot be kept parallel to the right leg and the left foot cannot be supported by the structure, move the left foot until it is supported. The alignment of the sight buttons shall be maintained.\n\n4.7.2. Designated seating position: outboard rear\n\nFor rear seats or auxiliary seats, the legs are located as specified by the manufacturer. If the feet then rest on parts of the floor which are at different levels, the foot which first comes into contact with the front seat shall serve as a reference and the other foot shall be so arranged that the spirit level giving the transverse orientation of the seat of the device indicates the horizontal.\n\n4.7.3. Other designated seating positions:\n\nThe general procedure indicated in paragraph 4.7.1. above shall be followed except that the feet shall be placed as specified by the vehicle manufacturer.\n\n4.8. Apply lower leg and thigh weights and level the 3‑D H machine.\n\n4.9. Tilt the back pan forward against the forward stop and draw the 3‑D H machine away from the seat‑back using the T‑bar. Reposition the 3‑D H machine on the seat by one of the following methods:\n\n4.9.1. If the 3‑D H machine tends to slide rearward, use the following procedure. Allow the 3‑D H machine to slide rearward until a forward horizontal restraining load on the T‑bar is no longer required i.e. until the seat pan contacts the seat‑back. If necessary, reposition the lower leg.\n\n4.9.2. If the 3‑D H machine does not tend to slide rearward, use the following procedure. Slide the 3‑D H machine rearwards by applying a horizontal rearward load to the T‑bar until the seat pan contacts the seat‑back (see figure 2 of Appendix 1 to this annex).\n\n4.10. Apply a 100 + 10 N load to the back and pan assembly of the 3‑D H machine at the intersection of the hip angle quadrant and the T‑bar housing. The direction of load application shall be maintained along a line passing by the above intersection to a point just above the thigh bar housing (see figure 2 of Appendix 1 to this annex). Then carefully return the back pan to the seat‑back. Care must be exercised throughout the remainder of the procedure to prevent the 3‑D H machine from sliding forward.\n\n4.11. Install the right and left buttock weights and then, alternately, the eight torso weights. Maintain the 3‑D H machine level.\n\n4.12. Tilt the back pan forward to release the tension on the seat‑back. Rock the 3‑D H machine from side to side through a 10° arc (5° to each side of the vertical centreplane) for three complete cycles to release any accumulated friction between the 3‑D H machine and the seat.\n\nDuring the rocking action, the T‑bar of the 3‑D H machine may tend to diverge from the specified horizontal and vertical alignment. The T‑bar must therefore be restrained by applying an appropriate lateral load during the rocking motions. Care shall be exercised in holding the T‑bar and rocking the 3‑D H machine to ensure that no inadvertent exterior loads are applied in a vertical or fore and aft direction.\n\nThe feet of the 3‑D H machine are not to be restrained or held during this step. If the feet change position, they should be allowed to remain in that attitude for the moment.\n\nCarefully return the back pan to the seat‑back and check the two spirit levels for zero position. If any movement of the feet has occurred during the rocking operation of the 3‑D H machine, they must be repositioned as follows:\n\nAlternately, lift each foot off the floor the minimum necessary amount until no additional foot movement is obtained. During this lifting, the feet are to be free to rotate; and no forward or lateral loads are to be applied. When each foot is placed back in the down position, the heel is to be in contact with the structure designed for this.\n\nCheck the lateral spirit level for zero position; if necessary, apply a lateral load to the top of the back pan sufficient to level the 3‑D H machine's seat pan on the seat.\n\n4.13. Holding the T‑bar to prevent the 3‑D H machine from sliding forward on the seat cushion, proceed as follows:\n\n(a) return the back pan to the seat‑back;\n\n(b) alternately apply and release a horizontal rearward load, not to exceed 25 N, to the back angle bar at a height approximately at the centre of the torso weights until the hip angle quadrant indicates that a stable position has been reached after load release. Care shall be exercised to ensure that no exterior downward or lateral loads are applied to the 3‑D H machine. If another level adjustment of the 3‑D H machine is necessary, rotate the back pan forward, re‑level, and repeat the procedure from paragraph 4.12.\n\n4.14. Take all measurements:\n\n4.14.1. The co‑ordinates of the \"H\" point are measured with respect to the three‑dimensional reference system.\n\n4.14.2. The actual torso angle is read at the back angle quadrant of the 3‑D H machine with the probe in its fully rearward position.\n\n4.15. If a re‑run of the installation of the 3‑D H machine is desired the seat assembly should remain unloaded for a minimum period of 30 minutes prior to the re‑run. The 3‑D H machine should not be left loaded on the seat assembly longer than the time required to perform the test.\n\n4.16. If the seats in the same row can be regarded as similar (bench seat, identical seats, etc.) only one \"H\" point and one \"actual torso angle\" shall be determined for each row of seats, the 3‑D H machine described in Appendix 1 to this annex being seated in a place regarded as representative for the row. This place shall be:\n\n4.16.1. in the case of the front row, the driver's seat;\n\n4.16.2. in the case of the rear row or rows, an outer seat.\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_","sortOrder":10},{"sectionNumber":"Annex 17 - Appendix 2","sectionType":"subdivision","heading":"Annex 17 - Appendix 2","content":"#### Annex 17 - Appendix 2\n\nPROVISIONS CONCERNING THE INSTALLATION OF FORWARD\\-FACING AND REARWARD-FACING ISOFIX CHILD RESTRAINT SYSTEMS OF UNIVERSAL AND SEMI-UNIVERSAL CATEGORIES INSTALLED ON ISOFIX POSITIONS\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories.\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\n2. Test procedure\n\nFor any ISOFIX position in the vehicle, as indicated by the car manufacturer, in table 2 of Appendix 3, it has to be checked that it is possible to accommodate the corresponding child restraint fixture(s) (CRF):\n\n2.1. When checking a CRF on a seat, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF on a rear seat, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF on the ISOFIX position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N  10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N  10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s) when accommodated in the ISOFIX position. It is not required that the CRF(s) shall be possible to move in and out of the ISOFIX position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s) without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3 Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in table 2 given in Appendix 3 to this annex.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in table 2 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA \\- ISO/F3: Full-Height Forward Facing toddler CRS\n\nB \\- ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 \\- ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC \\- ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD \\- ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE \\- ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG \\- ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n \n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n![](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n3 N/A \n4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 1 - ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS (height 720 mm) ISOFIX SIZE CLASS A\n\n \n\n###### 4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n![](image.048.png)\n\n> Note: Key\n\n> Note: 1 Limits in the forward and upwards directions \n> 2 Dashed line marks area where a support leg, or similar, is allowed to protrude \n> 3 N/A \n> 4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap\n\nFigure 2 – ISO/F2 envelope dimensions for a reduced-height forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n![](image.049.png)\n\n> Note: Key\n\n> Note: 1 Limits in the forward and upwards directions \n> 2 Dashed line marks area where a support leg, or similar, is allowed to protrude \n> 3 N/A \n> 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 3 – ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n![](image.050.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upwards directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\n###### Figure 4 - ISO/R3 envelope dimensions for a full-size rearward-facing toddler CRS\n\n###### ISOFIX SIZE CLASS C\n\n \n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n![](image.051.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upwards directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 5 - ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS\n\nISOFIX SIZE CLASS D\n\n \n4.6. Rearward facing infant child restraint systems envelope\n\n![](image.052.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upward directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 6 – ISO/R1 envelope dimensions for an infant-size rearward-facing CRS\n\nISOFIX SIZE CLASS E\n\n \n4.7. Lateral facing child restraint systems envelope\n\n![](image.053.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upward directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backward limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3\n\nFigure 7 – Envelope dimensions for lateral facing position CRS - ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\"","sortOrder":11},{"sectionNumber":"ISOFIX size class","sectionType":"section","heading":"ISOFIX size class","content":"##### ISOFIX size class","sortOrder":12},{"sectionNumber":"ISO/L1","sectionType":"section","heading":"ISO/L1","content":"##### ISO/L1","sortOrder":13},{"sectionNumber":"ISO/L2","sectionType":"section","heading":"ISO/L2","content":"##### ISO/L2","sortOrder":14},{"sectionNumber":"ISO/R1","sectionType":"section","heading":"ISO/R1","content":"##### ISO/R1","sortOrder":15},{"sectionNumber":"C","sectionType":"subdivision","heading":"C","content":"#### C","sortOrder":16},{"sectionNumber":"I - 9 to 18 kg","sectionType":"part","heading":"I - 9 to 18 kg","content":"## I - 9 to 18 kg","sortOrder":17},{"sectionNumber":"A","sectionType":"section","heading":"A","content":"##### A","sortOrder":18},{"sectionNumber":"ISO/F3","sectionType":"section","heading":"ISO/F3","content":"##### ISO/F3","sortOrder":19},{"sectionNumber":"4.2. Reduced-height forward-facing toddl","sectionType":"section","heading":"4.2. Reduced-height forward-facing toddler child restraint systems envelope","content":"###### 4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n![](image.048.png)\n\n> Note: Key\n\n> Note: 1 Limits in the forward and upwards directions \n> 2 Dashed line marks area where a support leg, or similar, is allowed to protrude \n> 3 N/A \n> 4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap\n\nFigure 2 – ISO/F2 envelope dimensions for a reduced-height forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n![](image.049.png)\n\n> Note: Key\n\n> Note: 1 Limits in the forward and upwards directions \n> 2 Dashed line marks area where a support leg, or similar, is allowed to protrude \n> 3 N/A \n> 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 3 – ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n![](image.050.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upwards directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44","sortOrder":20},{"sectionNumber":"Figure 4 - ISO/R3 envelope dimensions fo","sectionType":"section","heading":"Figure 4 - ISO/R3 envelope dimensions for a full-size rearward-facing toddler CRS","content":"#### Annex 17 - Appendix 2\n\nPROVISIONS CONCERNING THE INSTALLATION OF FORWARD\\-FACING AND REARWARD-FACING ISOFIX CHILD RESTRAINT SYSTEMS OF UNIVERSAL AND SEMI-UNIVERSAL CATEGORIES INSTALLED ON ISOFIX POSITIONS\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories.\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\n2. Test procedure\n\nFor any ISOFIX position in the vehicle, as indicated by the car manufacturer, in table 2 of Appendix 3, it has to be checked that it is possible to accommodate the corresponding child restraint fixture(s) (CRF):\n\n2.1. When checking a CRF on a seat, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF on a rear seat, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF on the ISOFIX position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N  10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N  10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s) when accommodated in the ISOFIX position. It is not required that the CRF(s) shall be possible to move in and out of the ISOFIX position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s) without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3 Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in table 2 given in Appendix 3 to this annex.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in table 2 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA \\- ISO/F3: Full-Height Forward Facing toddler CRS\n\nB \\- ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 \\- ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC \\- ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD \\- ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE \\- ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG \\- ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n \n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n![](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n3 N/A \n4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 1 - ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS (height 720 mm) ISOFIX SIZE CLASS A\n\n \n\n###### 4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n![](image.048.png)\n\n> Note: Key\n\n> Note: 1 Limits in the forward and upwards directions \n> 2 Dashed line marks area where a support leg, or similar, is allowed to protrude \n> 3 N/A \n> 4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap\n\nFigure 2 – ISO/F2 envelope dimensions for a reduced-height forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n![](image.049.png)\n\n> Note: Key\n\n> Note: 1 Limits in the forward and upwards directions \n> 2 Dashed line marks area where a support leg, or similar, is allowed to protrude \n> 3 N/A \n> 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 3 – ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n![](image.050.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upwards directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\n###### Figure 4 - ISO/R3 envelope dimensions for a full-size rearward-facing toddler CRS\n\n###### ISOFIX SIZE CLASS C\n\n \n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n![](image.051.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upwards directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 5 - ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS\n\nISOFIX SIZE CLASS D\n\n \n4.6. Rearward facing infant child restraint systems envelope\n\n![](image.052.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upward directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 6 – ISO/R1 envelope dimensions for an infant-size rearward-facing CRS\n\nISOFIX SIZE CLASS E\n\n \n4.7. Lateral facing child restraint systems envelope\n\n![](image.053.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upward directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backward limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3\n\nFigure 7 – Envelope dimensions for lateral facing position CRS - ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\"","sortOrder":21},{"sectionNumber":"ISOFIX SIZE CLASS C","sectionType":"section","heading":"ISOFIX SIZE CLASS C","content":"###### ISOFIX SIZE CLASS C\n\n \n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n![](image.051.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upwards directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 5 - ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS\n\nISOFIX SIZE CLASS D\n\n \n4.6. Rearward facing infant child restraint systems envelope\n\n![](image.052.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upward directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backwards limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in Regulation No. 44\n\nFigure 6 – ISO/R1 envelope dimensions for an infant-size rearward-facing CRS\n\nISOFIX SIZE CLASS E\n\n \n4.7. Lateral facing child restraint systems envelope\n\n![](image.053.png)\n\n> Note: Key\n\n> Note: 1 Limits in the rearward and upward directions\n\n> Note: 2 Dashed line marks area where a support leg, or similar, is allowed to protrude\n\n> Note: 3 The backward limitation (to the right in the figure) is given by the forward-facing envelope in Figure 2\n\n> Note: 4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3\n\nFigure 7 – Envelope dimensions for lateral facing position CRS - ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\"","sortOrder":22},{"sectionNumber":"Annex 17 - Appendix 3","sectionType":"section","heading":"Annex 17 - Appendix 3","content":"##### Annex 17 - Appendix 3\n\nTable 1\n\nTABLE OF VEHICLE HANDBOOK INFORMATION ON CHILD RESTRAINT SYSTEMS\n\nINSTALLATION SUITABILITY FOR VARIOUS SEATING POSITIONS\n\n```html\n

Mass Group

Seating position (or other site)

Front

Passenger

Rear

Outboard

Rear

Centre

Intermediate Outboard

Intermediate Centre

group 0 up to 10 kg

group 0+ up to 13 kg

group I 9 to 18 kg

group II 15 to 25 kg

group III 22 to 36 kg

\n```\n\nKey of letters to be inserted in the above table:\n\nU \\= Suitable for \"universal\" category restraints approved for use in this mass group.\n\nUF \\= Suitable for forward-facing \"universal\" category restraints approved for use in this mass group.\n\nL \\= Suitable for particular child restraints given on attached list. These restraints may be of the \"specific vehicle\", \"restricted\" or \"semi-universal\" categories.\n\nB \\= Built-in restraint approved for this mass group.\n\nX \\= Seat position not suitable for children in this mass group.\n\n \nTable 2\n\nTABLE OF VEHICLE HANDBOOK INFORMATION ON ISOFIX CHILD RESTRAINT SYSTEMS INSTALLATION SUITABILITY FOR VARIOUS ISOFIX POSITIONS\n\n```html\n
Mass Group
Size class

Fixture

Vehicle ISOFIX positions

Front

Passenger

Rear

Outboard

Rear

Centre

Intermediate Outboard

Intermediate Centre

Other sites

carrycot

F

ISO/L1

G

ISO/L2

(1)

0 - up to 10 Kg

E

ISO/R1

(1)

0+ - up to 13 kg

E

ISO/R1

D

ISO/R2

C

ISO/R3

(1)

I – 9 to 18 kg

D

ISO/R2

C

ISO/R3

B

ISO/F2

B1

ISO/F2X

A

ISO/F3

(1)

II – 15 to 25 kg

(1)

III – 22 to 36 kg

(1)

\n```\n\n(1) For the CRS which do not carry the ISO/XX size class identification (A to G), for the applicable mass group, the car manufacturer shall indicate the vehicle specific ISOFIX child restraint system(s) recommended for each position.\n\nKey of letters to be inserted in the above table\n\nIUF = suitable for ISOFIX forward child restraints systems of universal category approved for use in the mass group\n\nIL \\= suitable for particular ISOFIX child restraint systems (CRS) given in the attached list. These ISOFIX CRS are those of the \"specific vehicle\", \"restricted\" or \"semi-universal\" categories.\n\nX = ISOFIX position not suitable for ISOFIX child restraint systems in this mass group and / or this size class.\n\n\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\\_\n\n \nNOTES\n\nThis compilation of Vehicle Standard (Australian Design Rule 4/04 - Seatbelts) 2006 includes all the instruments set out in the Table of Instruments. The Table of Amendments provides a history of clauses that have been amended, inserted or deleted.\n\nTable of Instruments\n\n| Name of Instrument | FRLI Registration Date | Commencement Date |\n| --------------------------------------------------------------------------- | ---------------------------- | ----------------- |\n| Vehicle Standard (Australian Design Rule 4/04 - Seatbelts) 2006 | 17/05/06 (see F2006L01522) | 18/05/06 |\n| Vehicle Standard (Australian Design Rule 4/04 – Seatbelts) 2006 Amendment 1 | 22/01/2007 (see F2007L00193) | 23/01/2007 |\n| Vehicle Standard (Australian Design Rule 4/04 – Seatbelts) 2006 Amendment 2 | 25/02/2009 (see F2009L00703) | 26/02/2009 |\n| Vehicle Standard (Australian Design Rule 4/04 – Seatbelts) 2006 Amendment 3 | 28/05/2012 (see F2012L01083) | 29/05/2012 |\n\nTable of Amendments\n\n| Clause affected | How affected | Amending instrument |\n| --------------- | ------------ | ------------------- |\n| 3 | am | Amendment 3 |\n| 3.6 |  3.7 | Amendment 3 |\n| 3.6 | ad | Amendment 3 |\n| 5.1 | am | Amendment 1 |\n| 5.3 | ad | Amendment 2 |\n| 6.2 | am | Amendment 1 |\n| 7. | am | Amendment 2 |\n\nad = added or inserted\n\nam = amended\n\ndel = deleted or removed\n\nrr = removed and replaced\n\n = clause renumbered. This takes the format of old no.  new no.","sortOrder":23},{"sectionNumber":"Mass Group","sectionType":"section","heading":"Mass Group","content":"##### Mass Group","sortOrder":24},{"sectionNumber":"Size class","sectionType":"section","heading":"Size class","content":"##### Size class","sortOrder":25},{"sectionNumber":"Vehicle ISOFIX positions","sectionType":"section","heading":"Vehicle ISOFIX positions","content":"##### Vehicle ISOFIX positions","sortOrder":26},{"sectionNumber":"Outboard","sectionType":"section","heading":"Outboard","content":"Rear\n\n###### Outboard","sortOrder":27},{"sectionNumber":"Centre","sectionType":"section","heading":"Centre","content":"Rear\n\n###### Centre","sortOrder":28}],"analysis":{"kimi_summary":{"_metrics":{"provider":"moonshot","completionTokens":4096},"content_quality":"ok","complexity_score":8,"scope_assessment":{"changed":false,"description":"While the Table of Amendments indicates several technical updates (e.g., to clauses 3, 5.1, and 6.2), these appear to revise specific testing procedures and cross-references rather than alter the fundamental scope of the legislation. The instrument remains focused on establishing uniform technical standards for seatbelt assemblies, anchorages, and child restraint installations. The inclusion of modern ISOFIX provisions reflects an evolution of technical content"},"complexity_factors":["Incorporates by reference multiple external United Nations Economic Commission for Europe (UNECE) Regulations (Nos. 14, 16, 44, 52) without reproducing their full text, requiring cross-referencing.","Contains over 15 technical annexes with engineering diagrams, dimensional specifications for test apparatus, and geometric envelopes for child restraint fixtures.","Extremely precise physical tolerances and measurements throughout (e.g., 'width of the contact surface is not less than 46 mm', 'tension of at least 50 N', 'pitch angle of 15° ± 10°').","Nested conditional logic and exceptions (e.g., paragraph 8.1.9 provides a technical exception to paragraph 8.1.8 regarding airbag deployment).","Multiple overlapping transitional provisions with specific dates and amendment series references (e.g., 'Supplement 15 to the 04 series of amendments', '36 months following the official date').","Extensive use of specialized automotive engineering terminology (e.g., ISOFIX, CRF, 3-D H machine, 'H' point, torso angle, retractor types).","The provided text appears to be an extract/fragment (commencing at section 8.1.9) with duplicated sections and formatting artifacts (HTML table tags), indicating compilation complexity."],"plain_english_summary":"This instrument mandates technical safety, design and testing standards for seatbelts, anchorages and child restraints in Australian vehicles—covering strength/durability tests, correct installation to prevent slipping or damage, ISOFIX anchor points, passenger-airbag warnings for rear‑facing child seats, and approval markings showing compliance.\n\nIt affects vehicle manufacturers, importers and testing labs (who must certify compliance) and protects consumers by ensuring in‑vehicle restraint systems meet proven crash‑safety requirements."},"flash_summary":{"complexity_score":8,"scope_assessment":{"changed":true,"description":"The rule as compiled in 2006 (with subsequent amendments) has materially broadened beyond a simple seat‑belt specification into a comprehensive vehicle restraint regime. Amendments and the inclusion of Annex 17 extended scope to detailed ISOFIX child‑restraint installation envelopes, mandatory ISOFIX positions for certain vehicle categories (paragraph 8.3.5), expanded vehicle handbook information requirements, and additional test and conformity regimes. The Table of Amendments shows multiple later modifications (Amendments 1–3) that added or amended clauses (for example strengthening installation requirements and test procedures). Those additions move the instrument from a narrow seatbelt technical standard toward an integrated seatbelt/child‑restraint/approval system with international harmonisation and ongoing production conformity obligations (paragraphs 8.3.5, 9–11, Annex 17)."},"complexity_factors":["Extensive cross‑references to other Regulations and to ECE/1958 Agreement documents (e.g., Regulation No.14, No.44, Agreement Appendix 2)","Many annexes and appendices with technical test procedures and drawings (Annexes 2,3,4,8,15,17 and multiple appendices)","Detailed, prescriptive measurement and test steps (e.g. 4‑page H‑point procedure in Annex 15) with numerical tolerances and repeat‑run rules","Multiple conditional rules and exceptions (e.g. airbag non‑deployment when rearward‑facing CRS sensed (8.1.9); orientation exceptions for rotatable seats (8.1.10))","Marking, approval, extension and withdrawal processes with international communications requirements (paragraphs 5, 9–11, 14)","Transitional provisions with staggered timelines tied to specific supplements (paragraph 15 contains multiple phased dates and exceptions)","Complex tabular material and envelope‑shaped geometries for ISOFIX size classes (Annex 17 envelopes and Table 2)","Numerous defined terms and measurement systems (Annex 15 introduces multiple terms like H point, R point, torso angle, centreplane, fiducial marks)","Prescriptive laboratory calibration requirements (e.g. stopping device deceleration curves, ISO 6487 reference) requiring specialised equipment"],"plain_english_summary":"**What this instrument does (mechanics first)**\n\n- Sets mandatory technical requirements for seat belts, restraint systems and ISOFIX child‑restraint positions fitted to new vehicles (see Parts 8 and Annex 17). It specifies how belts, buckles, retractors and mountings must be designed, installed, marked and tested so they function correctly in a crash and are usable in ordinary use (paragraphs 8.2–8.3; Annexes). \n\n- Requires type‑approval, production conformity and marking procedures: vehicle and belt/restraint types must be approved to the standard, manufacturers must run ongoing production checks, and approvals can be withdrawn if production does not conform (paragraphs 9–11; Annex 2). Authorities and technical services must exchange approval and test details (paragraphs 9.3, 10.2, 14). \n\n- Prescribes detailed test and measurement procedures (for example H‑point seating geometry, retractor durability and locking, stopping‑device deceleration curves) in multiple annexes so approvals are based on reproducible laboratory/vehicle checks (Annexes 3–4, 8, 15). \n\n- Specifies required vehicle information for users: manufacturers must supply handbook entries about child‑restraint suitability and ISOFIX positions and must label equipment with defined approval marks (paragraph 8.3.5; Annex 17; Annex 2/Annex 17‑Appendix 3). \n\n- Provides transitional timetables for phased application of amendments and when older approvals may be rejected (paragraph 15). \n\n**Who it affects**\n\n- Vehicle manufacturers and vehicle importers: they must design and deliver vehicles that meet the technical installation and information requirements (8.2–8.3, Annex 17). \n- Seat‑belt, restraint system and ISOFIX hardware suppliers: products must obtain type approval and meet installation/test requirements (paragraphs 5–7, Annexes and Annex 2 marking rules). \n- Technical services and approval authorities: must carry out/assess testing, verify conformity of production and exchange approval data with other jurisdictions (paragraphs 9–11, 14). \n- Dealers / vehicle handbooks and end users: manufacturers must include clear information about which child restraints and ISOFIX positions are suitable for each seating position (Annex 17‑Appendix 3). \n\n**Why it matters (official purpose claims and an operational test of those claims)**\n\n- Official claim: the instrument harmonises minimum safety and compatibility standards for occupant restraints so that belts/ISOFIX fittings function in a crash and child restraints fit and can be used safely (see paragraphs 8.2.2, 8.3.5 and Annex 17). \n\n- Practical test of that claim (mechanisms, trade‑offs & burdens):\n - Mechanism: the standard achieves compatibility by prescribing physical anchor dimensions, envelope shapes for child‑restraint fixtures and repeatable test procedures (Regulation references: 8.2.1; Annex 17 envelopes and Appendix 2 test steps). That creates technical interoperability between vehicles and aftermarket/third‑party child restraints. \n - Compliance cost and administrative burden: manufacturers and suppliers must budget for type‑approval testing, laboratory set‑ups (trolleys, H‑point machines, retractor rigs) and periodic conformity audits (paragraph 9.3 requires verification, normally twice a year). Those are direct costs to producers and testing bodies and can raise unit costs for vehicles or restraint hardware. \n - Design constraint vs product choice: prescriptive dimensions and installation limits reduce some design freedom for vehicle makers (they must provide ISOFIX positions meeting envelopes (Annex 17) and accessible buckles per 8.3.2–8.3.4). At the same time, the standard enables independent child‑seat manufacturers to design to a common interface (positive for competition among CRS makers). \n - Administrative discretion & implementation risk: approval and withdrawal powers are invested in administrative departments and technical services (paragraphs 11 and 10); how strictly they apply tolerances and how often they audit affects industry compliance costs and the risk that approvals will be withdrawn. \n - Information and consumer choice: the requirement that manufacturers list permissible restraint types and ISOFIX suitability in the vehicle handbook (Annex 17‑Appendix 3) shifts some responsibility to manufacturers to inform buyers; this improves transparency but imposes a documentation burden. \n\n**Who pays, who decides, what behaviour changes**\n\n- Who pays: primarily vehicle manufacturers and restraint hardware suppliers bear testing, design and production‑control costs (paragraphs 5–9). Those costs are likely passed partially to consumers through vehicle or accessory prices. \n- Who decides: administrative approval authorities and accredited technical services decide on type approvals, extensions, withdrawals and perform conformity verification (paragraphs 5, 9–11, 14). \n- Behaviour changes required: vehicle makers must design anchorages and seat installations to prescribed dimensions and strengths (8.2.1); fit buckles and retractors that meet accessibility and release requirements (8.3.2–8.3.4); provide ISOFIX positions that accommodate standard CRF envelopes and list suitability in handbooks (8.3.5; Annex 17); and submit to production conformity controls and marking rules (paragraphs 9–11; Annex 2). \n\n**Concentrated benefits / diffuse costs and market effects**\n\n- Concentrated benefits: CRS (child restraint system) manufacturers and testing laboratories gain clearer, internationally harmonised specifications to design to (Annex 17 envelopes), reducing uncertainty about cross‑market sales. \n- Diffuse costs: vehicle buyers face the aggregate cost of compliance through product pricing and perhaps reduced design variety in seating/trim where constraints are tight. \n- Competition effects: the standard’s common interface for ISOFIX tends to lower entry barriers for third‑party CRS suppliers (positive for competition), while type‑approval and frequent audits raise compliance costs (which can advantage larger OEMs and certified suppliers who internalise testing better). \n\n**Implementation and transitional considerations**\n\n- The instrument contains phased transitional dates tied to specific supplements and amendments (paragraph 15). That gives manufacturers lead time, but also creates multiple coexisting approval regimes during the transition window which technical services and approval authorities must manage. \n\n(Referenced provisions: 8.1.9–8.3.5; 9–11; 14; 15; Annexes 2, 8, 15 and Annex 17.)"},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/vehicle-standard-australian-design-rule-4-04-seatbelts-2006","history":"/api/acts/vehicle-standard-australian-design-rule-4-04-seatbelts-2006/history","analysis":"/api/acts/vehicle-standard-australian-design-rule-4-04-seatbelts-2006/analysis","conflicts":"/api/acts/vehicle-standard-australian-design-rule-4-04-seatbelts-2006/conflicts","importantCases":"/api/acts/vehicle-standard-australian-design-rule-4-04-seatbelts-2006/important-cases","documents":"/api/acts/vehicle-standard-australian-design-rule-4-04-seatbelts-2006/documents"}}