Missouri Trucking Laws

The Federal Motor Carrier Safety Regulations (Title 49, Parts 350-399) govern all vehicles engaged in interstate traffic.

There are some situations where a tractor-trailer or other commercial motor vehicle is involved in only intrastate travel. For example, an appliance store in Saint Louis may own a truck that only makes in-state deliveries.

The Missouri Department of Public Safety has adopted Title 49, Parts 382-384 and 390-399 of the federal regulations.

The following provisions are an overview of Missouri laws that affect trucks operating only in Missouri:

Driver Qualification

Missouri has adopted Part 391 of the Federal Regulations with a few notable differences in age requirement and physical qualification. A driver must be at least 18 years of age to obtain a CDL or Class E license, and at least 21 if transporting hazardous materials. Not all federal physical requirements are applicable to drivers in intrastate commerce, however they are not exempt from the periodic drug testing requirements.

Hours of Service

Missouri has adopted Part 395 of the Federal Regulations with one notable difference. The maximum driving and on-duty requirements don’t apply to intrastate drivers transporting agricultural commodities or farm supplies if the transportation is limited to within a 100-air-mile radius from the source of the commodities or distribution point for the farm supplies when transporting happens during planting and harvesting seasons.

Vehicle Marking/Identification

Missouri had adopted Sec. 390.21 of the Federal Regulations with one notable exception. Missouri doesn’t regulate or issue DOT numbers to intrastate private carriers.

Crash reports are available from:

Missouri State Highway Patrol
Traffic Division
P.O. box 568
Jefferson City, MO 65102
(573) 526-6113

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