25 C.F.R. § 900.55 What are the standards for inventories?
Title 25 - Indians
A physical inventory should be conducted at least once every 2 years. The results of the inventory shall be reconciled with the Indian tribe or tribal organization's internal property and accounting records.
Title 25: Indians
PART 900—CONTRACTS UNDER THE INDIAN SELF-DETERMINATION AND EDUCATION ASSISTANCE ACT
Subpart F—Standards for Tribal or Tribal Organization Management Systems
Property Management System Standards
§ 900.55 What are the standards for inventories?
