Sgt. Mark J. Abrahamson discusses commercial vehicle regulations in Wisconsin. He notes that many intrastate carriers do not understand or comply with applicable Federal Motor Carrier Safety Regulations (FMCSRs). These include regulations around driver qualifications, hours of service, vehicle inspection and maintenance. For carriers operating vehicles over 26,000 pounds, most FMCSRs apply including parts around drug and alcohol testing, driver qualifications, hours of service, vehicle parts and inspection, and hazardous materials. Compliance with these regulations can reduce crashes by over 20% and help carriers avoid large liability costs.