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A Part 21 Subpart J Design Organisation Approval (DOA) is issued when the organisation demonstrated that it is in compliance with Part 21 Subpart J and the other Subparts applicable to the scope of the DOA. The DOA is required for applicants wishing to design and approve/seek approval for 'Part 21' products (aircraft, engine, propeller) or changes (modifications) or repairs to those products. It is also required for applicants for UKTSO Authorisation of Auxiliary Power Units (APU).
The Part 21 Subpart J DOA may include privileges to classify and approve certain changes/repairs, approve Flight Conditions and issue Permits to Fly.
This is a simplified design organisation approval. It can be used a derogation to the requirement to hold a Part 21 Subpart J DOA for certain simpler certification projects and is the default design organisation approval necessary for applicants for UK Technical Standard Order Authorisations (UKTSOA), with the exception of UKSTOA for APU.
The ADOA does not include any privileges, except when issued to support UKTSOA, the ADOA Holder may classify and approve certain minor changes to its approved equipment.
The process for the application for DOA and ADOA is detailed below.
The BCAR A8-21 design organisation approval is an equivalent to the Part 21 Subpart J DOA. It is required for applicants wishing to design and approve/seek approval for 'Non-Part 21' (or National) products (aircraft, engine, propeller) or changes (modifications) or repairs to those products.
The BCAR A8-21 design organisation approval may include privileges to classify and approve certain changes/repairs and issue instructions.
Guidance on how to
apply for a BCAR organisation approval.
Please see the following guidance:process for Type Certification
approval of changes (modifications) and repairs approval of UK Technical Standard Order Authorisations (UKTSOA)
See the Official Record Series 5,
CAA Scheme of Charges.
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. 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.
When using bank transfer, it would be helpful if you could please identify what the payment is for by including your approval reference and receiving department.
An automated email receipt for your online application will be returned.
Same day, special delivery and other customised services are available at an additional cost. This service is on request, which should be made at the time of initial application. Documents are worked to a same day turnaround from receipt of customer request by 11:00 to completion of the processing of the application by 16:30 on the same working
day. The customer will be able to collect the documents by 16:30 on the same day or the documents shall be sent by Royal Mail special delivery, where this is included in the service.
View same day, special and customised delivery charges
Complete and submit CAA Form
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