This specification establishes requirements for obtaining the official assignment or confirmation of nomenclature and for identification and re-identification marking for electronic and aeronautical equipment, including support equipment and systems; e.g., Test, Utility, Trainers, etc. Nomenclature procedures are explained in MIL-STD-196 for electronic equipment and MIL-HDBK-1812 for aeronautical, aeronautical support equipment, and photographic equipment.