49 U.S.C. § 13708 — Billing and collecting practices

A motor carrier^* subject to jurisdiction under subchapter I of chapter 135 shall disclose, when a document is presented or electronically transmitted for payment to the person responsible directly to the motor carrier^* for payment or agent of such responsible person, the actual rates, charges, or allowances for any transportation^* service and shall also disclose, at such time, whether and to whom any allowance or reduction in charges is made.

No person may cause a motor carrier to present false or misleading information on a document about the actual rate, charge, or allowance to any party to the transaction.

When the actual rate, charge, or allowance is dependent upon the performance of a service by a party to the transportation arrangement, such as tendering a volume of freight over a stated period of time, the motor carrier shall indicate in any document presented for payment to the person responsible directly to the motor carrier that a reduction, allowance, or other adjustment may apply.