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Federal Regulations

Federal Size and Weight Regulations

• 23 CFR 657
• 23 CFR 658
  • Aerodynamic Device Compliance with 23 CFR 658.16(b) (4)
• Federal Size Regulations for Commercial Motor Vehicles [HTML, PDF 1.1MB]
• Bridge Formula Weights [HTML, PDF 1.5MB]
• Bridge Formula Weights Calculator

Federal Notices and Rulemakings on Vehicle Size and Weight

• Section 1305 Truck Parking Facilities
• Commercial Vehicle Width Exclusive Devices (includes Supplementary Notice of Proposed Rulemaking and Final Rulemaking on Recreational Vehicles)
• Designation of Dromedary Equipped Truck-Tractor-Semitrailers as Specialized Equipment

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