Notice of authorised amendments (NAA) 2021 documents Issuing of an NAA gives notice to the changes in regulations and manuals. Produced by the Military Aviation Authority (MAA). From: Documents NAA) will be issued detailing which part of the MAA regulatory publications ( MRP) have been amended. To ensure that the reader appreciates the full context of the amendment, the NAA will include a reference to the amended section of the MRP and will provide a summary of the amendment; at this juncture the MRP will also be amended. The MAA will maintain records of the justification supporting any MRP amendment and the associated