Carriers who are using a driver for the first time or intermittently must obtain a signed statement from that driving that lists the total time the driver spent on-duty and driving during the immediately preceding 7 days, as well as the time at which the driver was last relieved of duty prior to beginning work for the carrier. A copy of the completed statement should be kept in the driver's file.
 
Pertinent Regulation(s): 49 C.F.R. 395.8