

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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News & Events
News & Events
Latest News

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The Consumer Price Index for All Urban Consumers increased 4.9% from April 2022 to April 2023, the smallest.

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U.S. Patent Approved for Felling...
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