Regulation check

Aircraft Metals Technology reads like a Maintenance & Flightline question — these are the publications that govern it in each branch:

PublicationBranchTitleDateStatus
DAFI 21-101Air ForceAircraft And Equipment Maintenance Management2023-12-20
GM 2026-03-16
Current
AR 750-1ArmyARMY MATERIEL MAINTENANCE POLICY2026-04-29Current
OPNAVINST 4790.2KNavyTHE NAVAL AVIATION MAINTENANCE PROGRAM2025-04-25Current
MCO 4790.25Marine CorpsGROUND EQUIPMENT MAINTENANCE PROGRAM (GEMP)2014-01-12Current
DA PAM 738-751ArmyFUNCTIONAL USERS MANUAL FOR THE ARMY MAINTENANCE MANAGEMENT SYSTEM - AVIATION2014-02-28Current
TO 00-20-1Air ForceAerospace Equipment Maintenance Inspection, Documentation, Policies, And Procedures2023-12-19Current
CFETP 2A7X1Air ForceAircraft Metals Technology2026-03-13Current
CFETP 2A7X1C1Air ForceAircraft Metals Technology2017-07-24Not in the current catalog
AGO 1959-37ArmyCOMMENDATION RIBBON WITH METAL PENDANT1959-10-08Current
TO 00-25-113Air ForceConservation And Segregation Of Critical Alloy And Precious Metal Bearing Parts And Scrap (Atos)2013-09-15Current
OC-ALCI21-105Air ForceIdentification Of Metal Used In The Manufacturing Processes2026-05-22Current
Looking for an actual answer, not just the pub? Ask it as a question — free, and it quotes the regulation text where indexed.
Numbers match loosely — “ar670”, “AR 670-1”, and “670-1” all find the same pub. Every result shows its live status from the official catalog.