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 — plus a seventh, non-regulatory domain covering the business side of running a trucking company: formation, bookkeeping, tax compliance, and load-level profitability. Use this index to navigate directly to the domain relevant to your 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.

Browse Business Management Topics

• Business Management — Trucking LLC formation, bookkeeping, tax compliance (Form 2290, IFTA, quarterly estimates), and load-level profitability analysis.