An informational update from the FMCSA -
Supporting documents help FMCSA enforcement personnel verify a driver’s record of duty status. Motor carriers must retain up to 8 supporting documents for every 24-hour period that a driver is on duty.
To learn more about what qualifies as a supporting document, and much more, read the ELD FAQs: https://eld.fmcsa.dot.gov/faq
