49 U.S. Code § 13702. Tariff requirement for certain transportation
(a) In General.—Except when providing transportation for charitable purposes without charge, a carrier subject to jurisdiction under chapter 135 may provide transportation or service that is—
in noncontiguous domestic trade, except with regard to bulk cargo, forest products, recycled metal scrap, waste paper, and paper waste; or
for movement of household goods;
only if the rate for such transportation or service is contained in a tariff that is in effect under this section. The carrier may not charge or receive a different compensation for the transportation or service than the rate specified in the tariff, whether by returning a part of that rate to a person, giving a person a privilege, allowing the use of a facility that affects the value of that transportation or service, or another device. A rate contained in a tariff shall be stated in money of the United States.
(b) Tariff Requirements for Noncontiguous Domestic Trade.—
A carrier providing transportation or service described in subsection (a)(1) shall publish and file with the Board tariffs containing the rates established for such transportation or service. The carriers shall keep such tariffs available for public inspection. The Board shall prescribe the form and manner of publishing, filing, and keeping tariffs available for public inspection under this subsection.
(2) Contents.—The Board may prescribe any specific information and charges to be identified in a tariff, but at a minimum tariffs must identify plainly—
the carriers that are parties to it;
(3) Inland divisions.—
(4) Time-volume rates.—
Rates in tariffs filed under this subsection may vary with the volume of cargo offered over a specified period of time.
(5) Changes.—The Board may permit carriers to change rates, classifications, rules, and practices without filing complete tariffs under this subsection that cover matter that is not being changed when the Board finds that action to be consistent with the public interest. Those carriers may either—
(c) Tariff Requirements for Household Goods Carriers.—
(1) In general.—
(2) Notice of availability.—
(4) Incorporation by reference.—