41 C.F.R. § 102-118.380 How does my agency apply for a waiver from a prepayment audit of requirement?
Title 41 - Public Contracts and Property Management
Your agency must submit a request for a waiver from the requirement to perform a prepayment in writing to:
General Services Administration Office of Transportation and Personal Property (MT) 1800 F Street, NW. Washington, DC 20405 http://policyworks.gov/org/main/MT
Title 41: Public Contracts and Property Management
PART 102–118—TRANSPORTATION PAYMENT AND AUDIT
Subpart D—Prepayment Audits of Transportation Services
Waivers from Mandatory Prepayment Audit
§ 102-118.380 How does my agency apply for a waiver from a prepayment audit of requirement?

