{"id":"F2005B00603","name":"CASA 458/00 - Approval under subregulation 207(2)","slug":"casa-458-00-approval-under-subregulation-207-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":32056,"registerId":"commonwealth-F2005B00603-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 458/00 - Approval under subregulation 207(2)","content":"INSTRUMENT NUMBER: CASA 458/00\n\nCIVIL AVIATION ACT 1988\n\nCIVIL AVIATION REGULATIONS 1988\n\nAPPROVAL UNDER SUBREGULATION 207 (2)\n\nI, EUGENE HOLZAPFEL, Acting Section Head, Systems, Certification Standards 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-NPA 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 03 litre per minute at 10,000 feet altitude, increasing by 0.1 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 E. Holzapfel\\]\n\nEugene Holzapfel\n\nActing Section Head, Systems\n\nCertification Standards Branch\n\n17th October 2000","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the underlying regulations; it is a single-instance approval that permits VH-NPA to use a specified nasal-cannula oxygen device (Oxymizer) subject to conditions. It narrows application to one aircraft and imposes device performance and provision requirements tied to existing Civil Aviation Orders (section 108.26)."},"complexity_factors":["Narrow, single-aircraft scope (approval applies only to VH-NPA).","Simple, numeric technical requirement for oxygen flow rate tied to altitude (0.3 L/min at 10,000 ft, +0.1 L/min per 2,000 ft to 18,000 ft).","Reference to external Civil Aviation Orders provisions (section 108.26 paras 6.1 and 5.1.2) which require looking up additional text to confirm full compliance obligations.","Delegated authority: issued by a CASA delegate under subregulation 207(2), meaning approval rests on administrative discretion rather than a broad legislative change.","Operational verification requirement (demonstrating device meets flow-rate profile) introduces technical compliance steps for the operator."],"plain_english_summary":"This instrument, signed by a CASA delegate, authorises aircraft VH‑NPA to carry and use Oxymizer nasal‑cannula oxygen units, subject to specified minimum flow‑rates by altitude. It also requires any mask‑style individual oxygen units to meet and be provided in accordance with the cited Civil Aviation Orders. It affects the aircraft operator (who must supply and verify compliant equipment), flight crew and passengers relying on individual oxygen devices, and CASA as the approving authority."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a specific individual approval instrument under subregulation 207(2) of the Civil Aviation Regulations 1988. Such instruments are inherently narrow in scope, applying only to the specific aircraft and equipment named. There is no indication of scope creep; it performs exactly the function intended for this type of delegated legislative instrument."},"complexity_factors":["Single purpose instrument with only two operative conditions","No defined terms section - relies on external references to Civil Aviation Orders","Minimal cross-referencing (only to Civil Aviation Orders section 108.26)","Straightforward conditional logic (two simple 'and' conditions)","Very short document (approximately 150 words of operative text)"],"plain_english_summary":"This is a specific approval issued by the Civil Aviation Safety Authority (CASA) allowing a particular aircraft (registration VH-NPA) to use a specific type of oxygen delivery device called an \"Oxymizer\" nasal cannula.\n\n**What it does:**\n- Permits the aircraft to use nasal cannula oxygen units instead of the standard full face masks that cover nose and mouth\n- Sets strict technical requirements for how these units must perform at different altitudes\n\n**Who it affects:**\n- The operator of aircraft VH-NPA\n- Passengers and crew on that specific aircraft who might need supplemental oxygen\n\n**The conditions:**\n- The Oxymizer units must deliver at least 0.3 litres of oxygen per minute at 10,000 feet, with increasing flow at higher altitudes up to 18,000 feet\n- The aircraft must still carry standard full face mask oxygen units as backup for those who need them\n\n**Why it matters:**\nThis is a tailored safety approval. Normally, aviation regulations require full face masks. This instrument allows an alternative medical device but ensures safety by requiring backup equipment and specific performance standards. It shows how aviation safety rules can be adapted for specific circumstances while maintaining protections."}},"importantCases":[],"_links":{"self":"/api/acts/casa-458-00-approval-under-subregulation-207-2","history":"/api/acts/casa-458-00-approval-under-subregulation-207-2/history","analysis":"/api/acts/casa-458-00-approval-under-subregulation-207-2/analysis","conflicts":"/api/acts/casa-458-00-approval-under-subregulation-207-2/conflicts","importantCases":"/api/acts/casa-458-00-approval-under-subregulation-207-2/important-cases","documents":"/api/acts/casa-458-00-approval-under-subregulation-207-2/documents"}}