Last reviewed: Last reviewed: 2026-08-23
Official FMCSA links
Go to the agency or regulation itself. Every link below was retrieved and reviewed on August 23, 2026.
- FMCSA: Do I Need a USDOT Number? (opens official site in a new tab)Registration and USDOT number decision guidance
- FMCSA: Hours of Service (opens official site in a new tab)Hours-of-service orientation
- FMCSA: Inspection, Repair, and Maintenance (opens official site in a new tab)Inspection, repair, and maintenance guidance
- eCFR: 49 CFR Part 396 (opens official site in a new tab)Current Part 396 regulation text
- FMCSA: Safety Measurement System (opens official site in a new tab)Safety Measurement System and its limitations
- FMCSA guidance portal (opens official site in a new tab)Searchable FMCSA guidance
Source policy
Static summaries can become stale. We show a review date, preserve the direct destination, and do not silently replace official sources with third-party summaries.