(a) If your agency is unable to resolve the disputed amount with the TSP, your agency must submit, within 30 calendar days, all relevant transportation documentation associated with the dispute, including a complete billing history and the appropriation or fund charged, to GSA Transportation Audits Division by email at [email protected], or by mail to: U.S. General Services Administration, 1800 F St. NW., 3rd Floor, Mail Hub 3400, Washington, DC 20405.

(b) The GSA Transportation Audits Division will review the appeal of an agency's final, full, or partial denial of a claim and issue a decision within 30 calendar days of receipt of appeal.

(c) A TSP must submit claims to the agency within three years under the guidelines established in subpart F of this part.