49 CFR §1313.8

1. (a)Summary information. The summary of a contract for the transportation of grain products that does not involve service to or from a port must contain the information specified in § 1313.7, paragraphs (a)(1), (2), (3) and (7). It must also contain the information specified in § 1313.7(a)(6) if the contract contains such terms.
2. (b)Supplemental information. In the event a complaint is filed that is directed at a carrier's ability to fulfill its common carrier obligation with carrier-furnished cars, the carrier(s) shall immediately supplement the information contained in the contract summary by submitting to the Board, and supplying to the complainant, additional data specified in § 1313.7(b).