CFR › Title 49 › Part 377 › §377.20949 CFR §377.209Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkWhen a carrier—(a)Has collected the amount of tariff charges represented in a freight bill presented by it as the total amount of such charges, and(b)Thereafter presents to the shipper another freight bill for additional charges—