• EU exit

    Please note that, in the event of UK participation in EASA and mutual recognition of licences and certificates ceasing, some CAA website content and application forms may continue to carry the EASA logo or reference the EU or EASA rather than the UK CAA in the short term.  These will be updated in due course following the outcome of the transition period negotiations on the long-term aviation relationship between the UK and the EU.  In the meantime, the guidance provided and the application forms accessed via the CAA website portal will continue to be valid.

  • Organisations may hold an approval from ANAC to maintain aircraft or engine and propellers for aircraft that are registered on the Brazilian Aircraft Register.

    A Bilateral Agreement between EU and Brazil was signed on 27 August 2013.

    The Bilateral Agreement means that NAA’s in Europe will undertake the oversight of organisations that hold EASA Part 145 approval and RBAC 145 Approval. This means that the UK CAA will undertake the oversight of those organisations where their main base is in the UK.


    Organisations must be based in the UK and hold:

    • A valid EASA Part 145 approval,
    • A current RBAC 145 approval.

    How much does it cost?

    See the Official Record Series 5, CAA Scheme of Charges (Airworthiness, Noise Certification and Aircraft and Aircraft Engine Emissions)

    Note: Currently ANAC do not charge a fee for renewal and/or changes.

    If the number of hours taken by the CAA to carry out its investigations in relation to the application exceeds the cost shown above, the applicant must pay an excess hourly charge. The CAA shall determine the excess hourly charge by taking the total number of excess hours taken by the CAA to complete the required investigations in relation to the application and multiplying that number of hours by an hourly charge, currently £209. The balance for the excess hourly charge (total hourly charge less initial charge already paid) is payable by the applicant to the CAA and will be invoiced to the applicant.

    Payments can be made by credit or debit card or by bank transfer or by a cheque made payable to the Civil Aviation Authority.

    How long will it take for my application to be processed?

    • The application will be processed by Approvals & Certification (A&C) and forwarded to the CAA Regional Surveyor for review within 10 working days.

    How long is it valid for?

    Once granted, a RBAC Approval is valid for 24 months unless suspended, cancelled or revoked.

    Applicants should be aware that RBAC may request suspension of the approval at any time if the conditions of the approval are not met.

    • Application form
    • Relevant fee
    • Completed RBAC F-900-73
    • Supplement to Maintenance Organisation Exposition (MOE)


    • Applications for changes must be made coincidentally to EASA Part 145 approvals.
    • The MOE Supplement should be amended if required and submitted for review and acceptance.
    • Submit the online application together with the F-900-73 and MOE Supplement to the CAA's Approvals & Certification (A&C) Department via email to apply@caa.co.uk          
    • A&C will process the application and acknowledge within 10 working days.


    • A&C will review and log the application. The MOE Supplement will be forwarded to the local CAA Regional Surveyor for review
    • The Regional Surveyor will review the MOE supplement
    • On receipt of the notification of acceptance from the Regional Surveyor, A&C will issue a new supplement approval letter
    • A&C will forward a copy of the Approval Letter and F-900-73 to ANAC to update their website.