Regulation check

MAINTENANCE AND REPAIR PART MATERIAL TYPES reads like a Maintenance & Flightline, Supply & Logistics 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
AR 710-2ArmySECONDARY ITEM POLICY AND RETAIL LEVEL MANAGEMENT2024-07-01Current
AFI 23-101 AFMC SupAir ForceMateriel Management Policy2021-12-10Current
MCO 4400.201 W/ CH-3Marine CorpsMANAGEMENT OF PROPERTY IN THE POSSESSION OF THE MARINE CORPS2025-05-21Current
COMDTINST 4400.1Coast GuardMAINTENANCE AND REPAIR PART MATERIAL TYPES2010-03-31Not in the current catalog
COMDTINST 4491.1ACoast GuardINVENTORY CONTROL POINT REMOTE STOCK LOCATION PARTS AND MATERIAL REQUEST FORMS POLICY2017-05-26Current
COMDTINST 4491.1Coast GuardPARTS AND MATERIAL REQUEST FORMS2011-07-06Superseded
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.