Attorney Leonard M. Singer,
Boston, MA (617) 737-7670 (www.LeonardMSinger.com)
49 CFR §377.209. Additional charges.
When 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-- the carrier may extend credit in the amount of such additional charges for a period of 30 calendar days from the date of the presentation of the freight bill for the additional charges.