Letter of authorization (LOA).
Letter of authorization (LOA). A document issued by a procuring contracting officer or designee that authorizes contractor personnel to accompany the force to travel to, from, and within an operational area, and outlines Government-furnished support authorizations within the operational area, as agreed to under the terms and conditions of the contract. For more information, see 48 CFR PGI 225.74.
32 CFR § 158.3
Unless otherwise noted, the following terms and their definitions are for the purposes of this part.