AR 405-45 governs the accountability and management of Army real property and interests therein, including real property inventories.
View AR 405-45 on armypubs.army.mil
It covers real property records, inventories, facility assignments and numbering, transfers, leases, improvements, utilities, and funding categories. It requires continuous record updates, semiannual reporting, physical inventories, and supporting vouchers for changes.
Applies to: This regulation is applicable to all Army installations and MACOMs having accountability for or occupying DA real property. This includes DoD agencies using Army property acquired by permit.
An inventory of such property will be continuously updated and reported semiannually or as otherwise directed by the Deputy Chief of Staff (DCS), G4. (paragraph 1-5)
The Army will maintain real property accountability records and an inventory on both a quantitative and monetary basis, and report thereon as directed by DoD Instruction (DoDI) 4165.14 to the President and to the U.S. Congress. (paragraph 2-1)
All facilities on an installation will have a unique, five-character, facility number. The reuse of facility numbers is prohibited for 5 years. (paragraph 2-3)
A diversion is a temporary change in the current use of a facility not to exceed 3 years. (paragraph 2-8)
In any case, all changes to real property require vouchered documents. (paragraph 2-9)