49 CFR §1039.11

1. (a)Commodities exempted. Except as indicated in paragraph (b) of this section, the rail transportation of the commodities listed below is exempt from the provisions of 49 U.S.C. subtitle IV. The Standard Transportation Commodity Code (STCC) numbers that identify the exempted commodities are those in effect on the effective date of the tariff cited, and shall embrace all commodities assigned additional digits.
2. (b)Conditions. Carriers must continue to comply with Board accounting and reporting requirements. All railroad tariffs pertaining to the transportation of these miscellaneous commodities will no longer apply. This exemption shall remain in effect, unless modified or revoked by a subsequent order of this Board.