41 C.F.R. § 301-70.806 What documentation must we retain for travel on Government aircraft?
Title 41 - Public Contracts and Property Management
You must retain all travel authorizations and cost-comparisons for travel on Government aircraft for two years.
Title 41: Public Contracts and Property Management
PART 301–70—INTERNAL POLICY AND PROCEDURE REQUIREMENTS
Subpart I—Policies and Procedures for Agencies That Authorize Travel on Government Aircraft
§ 301-70.806 What documentation must we retain for travel on Government aircraft?