New US Trucking Laws Take Effect from15 May 2025

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New US trucking laws and regulations are scheduled to take effect on May 15, 2025, impacting various aspects of the industry, including safety, compliance, and technology. Key changes include the implementation of speed limiter requirements, updates to the Safety Measurement System (SMS), and potential revisions to hours of service regulations. Additionally, there will be a focus on improving safety technology, such as automatic emergency braking (AEB), and addressing issues related to fraudulent activity in the freight industry. 

New US trucking laws and regulations are scheduled to take effect on May 15, 2025, impacting various aspects of the industry, including safety, compliance, and technology. Key changes include the implementation of speed limiter requirements, updates to the Safety Measurement System (SMS), and potential revisions to hours of service regulations. Additionally, there will be a focus on improving safety technology, such as automatic emergency braking (AEB), and addressing issues related to fraudulent activity in the freight industry. 

Key Changes and Effective Dates:

  • Speed Limiter Mandate:A proposed rule requiring speed limiters on commercial vehicles is expected to be finalized by May 2025, potentially setting speeds between 65 and 70 mph. 
  • Safety Measurement System (SMS) Updates:The FMCSA is planning to make adjustments to the SMS based on feedback from truckers, though specific changes are still being finalized. 
  • Automatic Emergency Braking (AEB):While a proposed rule for AEB systems in heavy trucks has faced delays, it’s still expected to impact new trucks as early as spring 2025. 
  • Elimination of MC Numbers:The FMCSA plans to eliminate the use of Motor Carrier (MC) numbers, relying solely on USDOT numbers for identification. 
  • ELD Deadline Extension:The deadline for updating electronic logging devices (ELDs) in pre-2000 vehicles has been pushed back to June 2025. 
  • DOT Blitz Week:The 2025 International Roadcheck (DOT Blitz Week) is scheduled for May 13-15, focusing on inspections of hours of service regulations. 
  • English Language Proficiency:The FMCSA is expected to resume enforcement of English language proficiency requirements for drivers, meaning drivers must be able to understand highway traffic signs and signals. 
  • Medical Certification:There will be changes to the medical certification process, including reporting requirements for medical examiners. 
  • Drug and Alcohol Clearinghouse:The Drug and Alcohol Clearinghouse will continue to play a role in driver qualification, with drivers needing to complete the return-to-duty process for violations. 
  • Maintenance Reporting:Carriers will be required to maintain detailed maintenance records, which will be reviewed during accident investigations. 
  • Frost Laws:In northern U.S. and Canada, frost laws that limit truck weight during spring thaw will begin to expire in May.