Published date: 5 April 2025

Purpose

This AC describes an acceptable means of compliance with Part 21, Certification of Products and Parts, Subpart Q, Identification of Products and Parts. It is intended for a product manufacturing organisation, or a person performing maintenance, in completing or replacing product identification markings.

Related rules

This AC relates specifically to Part 21 Subpart Q Identification of Products and Parts.

Change notice

Revision 4 makes stylistic and formatting changes to align with current AC style.