Receipt
Receipt means the actual date on which a submission is received. With respect to receipt by the Department, receipt is the date on which the Department official specified in this part receives the submission. Demonstration of receipt includes a postal return receipt, express delivery service receipt, or any other method that demonstrates actual receipt by the Departmental official specified in this part, including via electronic mail.
Source
49 CFR § 29.9
Scoping language
Unless otherwise provided, the following definitions apply to this part: