Hours of Service (HOS) Rule for Commercial Truck Drivers and the Electronic Logging Device (ELD) Mandate [March 18, 2020] [open pdf - 1MB]
From the Summary: "In response to the COVID [coronavirus disease]-19 outbreak, on March 13, 2020, the Department of Transportation (DOT) issued a national emergency declaration to exempt from the Hours of Service (HOS) rule through April 12, 2020, commercial drivers providing direct assistance in support of relief efforts related to the virus. This includes transport of certain supplies and equipment, as well as personnel. Drivers are still required to have at least 10 consecutive hours off duty (eight hours if transporting passengers) before returning to duty."
CRS Report for Congress, R46276
Congressional Research Service: https://crsreports.congress.gov/