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UK Civil Aviation Regulations

These are published by the CAA on our UK Regulations pages. EU Regulations and EASA Access Guides published by EASA no longer apply in the UK. Our website and publications are being reviewed to update all references. Any references to EU law and EASA Access guides should be disregarded and where applicable the equivalent UK versions referred to instead.

Airworthiness review certificates - ARC 15b and 15c issue

Guidance for approval holders

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This page offers guidance to appropriately approved organisations and independent certifying staff when issuing Airworthiness Review Certificate (ARC) for UK registered Part 21 aircraft.

Who can issue an ARC 15b?

Your organisation must hold a Part M Subpart G, Part-CAMO, or Part-CAO approval with ARC privilege on the aircraft type (for issue and extension).

Please refer to the information below for when to Issue an ARC 15b.

Commercial Air Transport Aircraft All Aircraft Aircraft must be in a controlled environment.
Non-Commercial Air Transport Aircraft Aircraft above 2730 Kg MTOW Aircraft must be in a controlled environment.
Non-Commercial Air Transport Aircraft Aircraft of 2730 Kg MTOW and below which are not covered by Part-ML No requirement for the aircraft to be in a controlled environment in order to issue the ARC.

Who can issue an ARC 15c?

Your organisation must hold a Part-CAMO, Part-CAO or Part 145 approval with the privilege to carry out airworthiness reviews on aircraft to which Part-ML applies.

Independent certifying staff that hold an approval issued by the Civil Aviation Authority (CAA) to carry our airworthiness reviews on aircraft to which Part-ML applies.

Please refer to the information below for when to issue an ARC 15c.

Non-Commercial Air Transport Part-ML aircraft
  • No requirement for the aircraft to be in a controlled environment in order to issue the ARC.
  • When the airworthiness review is carried out by a maintenance organisation or independent certifying staff, it must be carried out at the same time as the annual inspection.
  • The airworthiness review must be carried out by the same person that released the aircraft to service.
  • The same person that carried out the airworthiness review must also carry out a review of the maintenance programme.

Please note: The authorisation number on the Form 15b or 15c is the company authorisation number issued to the individual airworthiness review staff or the CAA authorisation number issued to the independent certifying staff, as applicable.

Controlled Environment

An aircraft in a controlled environment is an aircraft which, during the preceding 12 months has had its airworthiness continuously managed by a unique CAMO or CAO; and
All maintenance carried out on the aircraft must have been performed by a suitably approved maintenance organisation or the pilot / owner as appropriate, in accordance with Part M.

How to apply

Use your allocated password to log on to ARC online.

If you do not have access to ARC Online, please use CAA Form 15B and Form 15C

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