Hours of service - Iowa

Iowa has adopted Part 395 of the Federal Motor Carrier Safety Regulations (FMCSRs), as it existed on October 1, 2023, with a few exceptions.

Part 395 applies to a driver of a commercial motor vehicle with a gross vehicle weight rating of 26,001 pounds or more, or hauling hazardous materials required to be placarded.

Under Iowa’s adoption of 395.1(k), the state’s planting and harvesting season is January 1 through December 31.

Exception: A driver-salesperson for a private carrier, who is not for hire and who is engaged exclusively in intrastate commerce, and for-hire drivers who are engaged exclusively in intrastate commerce and who operate trucks and truck-tractors exclusively for the movement of construction materials and equipment to and from construction projects may drive 12 hours, be on duty 16 hours in a 24-hour period, and be on duty 70 hours in 7 consecutive days or 80 hours in 8 consecutive days.

Exception: A driver who is engaged exclusively in intrastate commerce and who operates a truck or truck-tractor exclusively for the movement of refined oil products may drive 12 hours, be on duty 16 hours in a 24-hour period, and be on duty 70 hours in 7 consecutive days or 80 hours in 8 consecutive days.