A Notice of Proposed Rule Making (NPRM) asks for comments on the proposed rule changes during a consultation period where anyone can make a submission.

About the consultation process

Public consultation on proposed rules is required under the Civil Aviation Act. The CAA drafts civil aviation rules and carries out public consultation on draft rules on behalf of the Minister of Transport.

Submissions received on draft rules are summarised and analysed. The results are published as a summary of public submissions, with a copy of the NPRM, under:

NPRMs closed for submissions

The proposed rules will be reconsidered to take into account the submissions received. If necessary, we undertake further consultation with key groups before submitting proposed rules to government.

How to make a submission

Electronic (form below, or PDF) submissions are preferred to assist in compiling, but submissions can still be sent by post, or delivered in person.

Official Information Act

Submitters should note that subject to the Official Information Act 1982, any information attached to submissions will become part of the docket file and will be available to the public for examination at the CAA offices in the Asteron Centre, 55 Featherston Street, Wellington.

Submitters should state clearly if there is any information in their submission that is commercially sensitive, or for some other reason the submitter does not want the information to be released to other interested parties. The CAA will consider this in making a decision in respect of any Official Information Act requests. It should be noted that the CAA cannot guarantee confidentiality in respect of any specific submissions.

NPRMs open for submission

Part 21 NPRM

NPRM 26-04 (Part 21) [PDF 664 KB]

Purpose of this NPRM

The proposals in this NPRM aim to add supplemental type certificates issued by the European Union Aviation Safety Agency (EASA) to the categories of acceptable technical data, modernise the structure of Part 21 by enabling the use of transport instruments, and move the categories of acceptable technical data from the rules into a transport instrument.

Summary of key proposals

CAA proposes to:

  • amend Part 21 to enable the Director of Civil Aviation to make transport instruments under Part 10, Subpart 3 of the Act
  • amend rule 21.503(b) to provide for a transport instrument specifying the categories of acceptable technical data and move the categories of acceptable technical data currently in Part 21, Appendix D, paragraph (a) into that transport instrument
  • add EASA-issued supplemental type certificates to the list of data that can be considered acceptable technical data
  • amend rule 21.503 to create rule 21.503(c) and move the provisions from Part 21, Appendix D, paragraph (b) into that rule
  • revoke Part 21, Appendix D
  • amend Part 21 to remove all other references to Part 21, Appendix D and replace them with references to rule 21.503(b)
  • amend Part 1 to add abbreviations for the Federal Aviation Administration of the United States (FAA), the Civil Aviation Safety Authority of Australia (CASA), and the European Union Aviation Safety Agency (EASA)
  • make other consequential amendments and minor editorial corrections

No new or amended offences or penalties, and no transitional periods, are proposed.

No changes to existing grandparenting provisions are proposed.

It is intended that all the proposals will come into force in late February or March 2027.

Paragraphs 3.1 to 3.25 on pages 9 - 12 provide more detail on the proposals and section 4 shows the proposals in rule format.

See here for more information about transport instruments.

Consultation on this NPRM closes on 9 November 2026.

Draft advisory circular also available for comment

AC43-9 has also been updated to align with the proposed changes to rule 21.503 and the use of the new transport instrument. The AC has been updated to add an abbreviations table and reformat the Part 1 definitions section into a table. Proposed insertions are in yellow highlight and proposed deletions are shown in strikethrough.

You can review the draft AC here: 

Advisory Circular AC43-9 Modifications, Repairs, and the CAA 337 form, revision 7 [PDF 616 KB]

If you would like to provide feedback, please use our Advisory Circular feedback form.

Consultation on this AC closes on 9 November 2026.

Feedback form

Please indicate your acceptance or otherwise. Any additional constructive comments, suggested amendments or alternative action will be welcome: *
Please indicate your acceptance or otherwise. Any additional constructive comments, suggested amendments or alternative action will be welcome:

More information

If you require more information about a current NPRM, please contact the CAA representative listed in the NPRM.

For general enquiries about our consultation process, contact us.