Topics
The Trucker Codex organizes its compliance library around six core regulatory domains, each governed by distinct sections of Title 49 of the Code of Federal Regulations. Use this index to navigate directly to the domain relevant to your compliance question, or browse the full article library within each topic hub below.
Browse Compliance Topics
- FMCSA & DOT Basics — What FMCSA is, how its jurisdiction attaches, and how safety fitness scoring works.
- HOS & ELD — Hours-of-Service limits and Electronic Logging Device compliance under 49 CFR Part 395.
- Driver Qualification File (DQF) — Required driver-file documentation and retention under 49 CFR Part 391.
- Vehicle Inspection & Maintenance — Inspection, repair, and Out-of-Service criteria under 49 CFR Part 396.
- Recordkeeping & Retention — Cross-cutting documentation and retention obligations under 49 CFR Parts 382, 385, 391, 395, and 396.
- Audits & Violations — How FMCSA enforcement events are triggered, structured, and escalated.
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