

Federal Standards/Regulations
- Federal Bridge Laws by State
- Federal Size Regulations for Commercial Motor Vehicles
- Commercial Vehicle Size and Weight Program
- Trailer Manufacturing Requirements
- Trailer Importation and Certification FAQs
- FMCSA — Driver’s Handbook on Cargo Securement
- Federal Motor Carrier Safety Administration US Domestic Equipment Restrictions (“So called 35% Rule” — Semitrailers consistent with 23 CFR 658.13(g) may operate without a permit provided the distance from the kingpin to the center of the rear axle is 46 feet or less.)
- FMCSA – Inspection, Repair, and Maintenance for Motor Carriers of Passengers – Part 396
- Federal Motor Vehicle Safety Standards and Regulations — Crash Avoidance
- FMVSS 126 – Electronic Stability Control Systems on Heavy Vehicles
- CDL Requirements by State
- CSA Regulations
- CSA Vehicle Maintenance BASIC Factsheet
- CSA Help Center Resources
- J.J. Keller News & Regulatory Alerts
Regulatory Compliance/Standards:
Lighting and Reflective Requirements
Emissions Regulations
Internal Revenue Service/Federal Excise Tax

Order Forms & Registration Links:
NTDA Service Department Labor Hours Guide – NTDA Service Department Labor Hours Guide gives dealers a tool to assist in the process of measuring their shop operations. Data in this report can be used in establishing baseline installation times for dealership operations, enabling service departments to take stock of their current production levels and pinpoint potential areas of improvement. Learn more.
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NTDA Bylaws and Antitrust Policies:
News & Events
News & Events
Latest News

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The NTDA was recently made aware of a program to potentially save your dealership labor, money and to.

Department of Labor Announces Proposed...
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The U.S. Department of Labor today announced a notice of proposed rulemaking to revise regulations regarding who can.

Join FTR This Week for...
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The NTDA is proud to serve as a sponsors for this week's FTR Conference. FTR’s 2023 Transportation Conference,.

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Job Opening at 8.8 Million...
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Phillips Welcomes Industry Veteran Drew...
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