Regulation check

Intra/Inter-Theater Postage Free Personal Correspondence reads like a Records & Information question — these are the publications that govern it in each branch:

PublicationBranchTitleDateStatus
AR 25-400-2ArmyARMY RECORDS MANAGEMENT PROGRAM2022-10-18Current
AFI 33-322Air ForceCommunication and Information Records Management and Information Governance Program2020-03-23Current
AR 600-8-104ArmyARMY MILITARY HUMAN RESOURCE RECORDS MANAGEMENT2023-06-29Current
DAFI 36-2608Air ForceMilitary Personnel Records Systems2026-03-02Current
BUPERSINST 1070.27ENavyDocument Submission Guidelines for the Electronic Military Personnel Records System2023-10-13Current
MILPERSMAN 1070-020NavyOfficer Official Military Personnel File (OMPF)—Current
PACAFVA 36-501Air ForceIntra/Inter-Theater Postage Free Personal Correspondence2022-04-20Not in the current catalog
DAFI 48-104Air ForceTobacco Free Living2025-06-30Current
DAFI 51-508Air ForcePolitical Activities, Free Speech and Freedom of Assembly2023-03-24Current
BUMEDINST 12792.2NavyCIVILIAN DRUG FREE WORKPLACE2026-04-27Current
SECNAVINST 5100.16CNavyDepartment of the Navy Gas Free Engineer Certification and Recertification2018-04-18Current
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.