Sources

The site uses plain operational explanations for general freight vocabulary. For regulated or higher-risk topics, source links may include official agency pages, insurance reference material, and public industry resources.

• FMCSA registration resources
• FMCSA hours-of-service summary
• FMCSA electronic logging devices
• FHWA freight glossary
• NHTSA GVWR and GAWR definitions
• NMFTA freight class explanation
• International Fuel Tax Agreement
• International Registration Plan
• NAIC consumer insurance glossary
• U.S. Energy Information Administration diesel fuel data
• eCFR Citizens Band radio service rules