{"id":"F2014L01505","name":"CASA EX146/14 - Repeal of CASA EX126/12 — minimum runway width","slug":"casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":128710,"registerId":"commonwealth-F2014L01505-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA EX146/14 - Repeal of CASA EX126/12 — minimum runway width","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: Repeal of CASA EX126/12 — minimum runway width\nmeta-generator: Aspose.Words for .NET 20.2\ntitle: CASA EX146/14\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nInstrument number CASA EX146/14\n\nI, Peter William Boyd, Acting Deputy Director of Aviation safety, a delegate of CASA, make this instrument under regulation 11.160 of the Civil Aviation Safety Regulations 1998 and subsection 33 (3) of the Acts Interpretation Act 1901.\n\n[Signed P. Boyd]\n\nPeter Boyd  Acting Deputy Director of Aviation safety\n\n10 November 2014\n\nRepeal of CASA EX126/12 — minimum runway width\n\n1 Duration\n\n This instrument commences on 13 November 2014 immediately after the commencement of the Civil Aviation Amendment (Narrow Runways) Regulation 2014.\n\n2 Repeal\n\n Instrument CASA EX126/12 is repealed.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1793},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument maintains its narrow, explicit purpose of repealing the specific predecessor instrument regarding runway width, exactly as described in its title. No expansion of scope has occurred."},"complexity_factors":["Only two operative provisions (Duration and Repeal)","No defined terms or interpretation section","Single, straightforward operation (repealing one named instrument)","Commencement date simply linked to commencement of external regulation"],"plain_english_summary":"**What this instrument does**\nThis document cancels an old aviation safety rule about minimum runway widths.\n\n**Key points**\n- It **repeals** (cancels) a previous CASA instrument (EX126/12) that contained requirements for how wide runways must be for aircraft operations.\n- It starts operating on 13 November 2014, immediately after new permanent regulations about narrow runways take effect.\n- This is essentially a housekeeping measure—removing a temporary exemption because new permanent rules are replacing it.\n\n**Who it affects**\nPilots, aircraft operators, and aerodrome (airport) operators who use smaller or narrower runways. They will now follow the new permanent regulations instead of the old exemption rules.\n\n**Why it matters**\nIt keeps aviation safety regulations clear and up-to-date by removing outdated exemptions, ensuring everyone follows the same current rules rather than overlapping or conflicting standards."}},"importantCases":[],"_links":{"self":"/api/acts/casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width","history":"/api/acts/casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width/history","analysis":"/api/acts/casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width/analysis","conflicts":"/api/acts/casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width/conflicts","importantCases":"/api/acts/casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width/important-cases","documents":"/api/acts/casa-ex146-14-repeal-of-casa-ex126-12-minimum-runway-width/documents"}}