{"id":"F2005B00657","name":"CASA 106/99 - Approval under subregulation 207(2)","slug":"casa-106-99-approval-under-subregulation-207-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":32132,"registerId":"commonwealth-F2005B00657-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 106/99 - Approval under subregulation 207(2)","content":"INSTRUMENT NUMBER: CASA 106/99\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS 1988\n\nAPPROVAL UNDER SUBREGULATION 207 (2)\n\nI, DAVID ALAN VILLIERS, Acting General Manager, Airworthiness Branch, CASA, a delegate of CASA, under subregulation 207 (2) of the Civil Aviation Regulations 1988 approve the operation of the aircraft bearing the nationality and registration marks VH-CAA with nasal cannula type individual oxygen dispensing units manufactured under the name “Oxymizer”, providing that:\n\n(a) the units have a flow rate of not less than 3 litre per minute at 10,000 feet altitude, increasing by .1 litre per minute for every 2,000 feet up to 18,000 feet altitude; and\n\n(b) other individual oxygen dispensing units for use in the aircraft, that are designed to cover the nose and mouth, meet the requirements of paragraph 6.1 of section 108.26 of the Civil Aviation Orders and are provided in accordance with paragraph 5.1.2 of that section.\n\n\\[Signed D.A. Villiers\\]\n\nDavid Alan Villiers\n\nActing General Manager\n\nAirworthiness\n\n21 April 1999","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument is an individual, conditional approval for a named aircraft (VH-CAA) to use a named nasal-cannula device (\"Oxymizer\"). It does not amend or broaden the Civil Aviation Regulations or Civil Aviation Orders; it operates within the existing regulatory framework (approval granted under subregulation 207(2)) and references existing Civil Aviation Orders (section 108.26 paragraphs 6.1 and 5.1.2). There is no indication in the text that it changes the original statutory scope of regulation beyond applying an existing delegated approval power to a specific aircraft and device."},"complexity_factors":["Single-aircraft, single-device approval (applies only to VH-CAA) reduces scope complexity.","A simple, explicit technical requirement (flow-rate: 0.3 L/min at 10,000 ft, +0.1 L/min per 2,000 ft to 18,000 ft) is easy to verify (paragraph (a)).","Cross-reference to existing Civil Aviation Orders (section 108.26 paragraphs 6.1 and 5.1.2) adds a dependency on external provisions for full compliance (paragraph (b)).","Legal basis is a single statutory delegation (subregulation 207(2)), with an identified delegate signing the instrument (instrument header and signature).","No procedural, temporal, or broad regulatory-change provisions; purely conditional approval reduces administrative complexity."],"plain_english_summary":"CASA, through a delegate, authorises aircraft VH‑CAA to carry and use a named Oxymizer nasal‑cannula oxygen device, subject to altitude‑linked minimum flow rates and the continued carriage/provision of other compliant nose‑and‑mouth oxygen units.  \n\nThe operator of VH‑CAA must ensure the Oxymizer meets the required performance and that any other oxygen equipment complies with the applicable Civil Aviation Orders; the approval is a discrete exercise of delegated regulatory power."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a specific single-aircraft approval that remains precisely within its original intended scope. It grants a limited exemption for one aircraft to use a specific alternative oxygen delivery device subject to conditions. There is no evidence of scope creep or expansion beyond the original purpose of approving alternative oxygen equipment for VH-CAA."},"complexity_factors":["Single-purpose instrument with narrow scope (one aircraft, one specific device)","Only two substantive conditions, both clearly expressed","Minimal cross-referencing (only to Civil Aviation Orders section 108.26)","No defined terms section","No nested exceptions or conditional logic beyond the two straightforward requirements","Length: approximately 150 words of operative text"],"plain_english_summary":"This is a specific approval from Australia's aviation safety regulator (CASA) allowing a particular aircraft (registration VH-CAA) to use a specific type of oxygen delivery device called an \"Oxymizer\" for passengers or crew who need supplemental oxygen.\n\n**What it does:**\nNormally, aviation regulations require oxygen masks that cover both nose and mouth. This approval creates an exception for VH-CAA to use nasal cannulas (tubes that sit in the nostrils) instead—but only if two conditions are met:\n\n* **Flow rate requirement:** The Oxymizer units must deliver at least 0.3 litres of oxygen per minute at 10,000 feet altitude, with the flow rate increasing by 0.1 litres per minute for every 2,000 feet of additional altitude up to 18,000 feet.\n* **Backup requirement:** The aircraft must still carry traditional oxygen masks (nose-and-mouth covering type) that meet specific technical standards set out in the Civil Aviation Orders, and these must be available as required by those orders.\n\n**Who it affects:**\nThis approval applies only to the single aircraft with registration VH-CAA. It affects the aircraft operator, crew, and passengers who might need supplemental oxygen during flight.\n\n**Why it matters:**\nThis is an example of how aviation safety regulators can grant specific exemptions from standard rules when alternative equipment meets equivalent safety standards. The approval ensures that while the aircraft can use more comfortable nasal cannulas for routine oxygen delivery, proper emergency backup equipment (full masks) remains available."}},"importantCases":[],"_links":{"self":"/api/acts/casa-106-99-approval-under-subregulation-207-2","history":"/api/acts/casa-106-99-approval-under-subregulation-207-2/history","analysis":"/api/acts/casa-106-99-approval-under-subregulation-207-2/analysis","conflicts":"/api/acts/casa-106-99-approval-under-subregulation-207-2/conflicts","importantCases":"/api/acts/casa-106-99-approval-under-subregulation-207-2/important-cases","documents":"/api/acts/casa-106-99-approval-under-subregulation-207-2/documents"}}