Rules and Regulations
Vehicle regulations
Federal Motor Carrier Safety Administration (FMCSA)- Compliance with interstate motor carrier noise emission standards
- Exemptions, commercial zones and terminal areas
- Passenger carrier regulations
- Rulemaking procedures federal motor carrier safety regulations and more
Hazardous materials regulations
- Safety fitness procedures
- Federal motor carrier safety regulations; general
- Transportation of hazardous materials; driving and parking rules and more
Regulatory guidance
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CDL standards; requirements and penalties
- Minimum levels of financial responsibility for motor carriers
- Qualifications of drivers and longer combination vehicle (LCV) driver instructors and more
Visit FMCSA website
Alcohol and drug rules
The FMCSA regulations require alcohol and drug testing of drivers, who are required to have a CDL. The U.S. DOT rules include procedures for urine drug testing and breath alcohol testing. Urine drug testing rules were first issued in December 1989. In 1994, the rules were amended to add breath alcohol testing procedures.View FMCSA website
Current Iowa reciprocity agreements
As they apply to farmers engaged in private farm hauling.- Reciprocity agreement (PDF)
- Declaration of Interstate Reciprocity Agreement Between The State of Iowa and The State of Nebraska (PDF)
- South Dakota Department of Public Safety Memorandum of Understanding With The Iowa Department of Transportation (PDF)
- Missouri Highways and Transportation Commission Memorandum of Understanding With The Iowa Department of Transportation (PDF)
- Minnesota Department of Public Safety Memorandum of Understanding With The Iowa Department of Transportation
- Iowa/Wisconsin Reciprocity Agreement
Commercial Motor Vehicle Education and Technical Assistance Program







