Transportation Compliance: What Federal Rules Apply to Carriers?

Federal transportation regulation involves DOT and its modal agencies: FMCSA for motor carriers, FAA for aviation, FRA for railroads, FMC for ocean carriers, NHTSA for vehicle safety, PHMSA for hazmat and pipelines, and TSA for security. Multi-modal carriers face overlapping requirements reconciled through compliance programs and SOPs. Carriers expanding services often look to mobility and transportation frameworks to align registration, insurance, and safety obligations.

FMCSA serves as the primary regulator for interstate motor carriers under 49 CFR Parts 350-399, while DOT's broader oversight includes financial responsibility, registration (USDOT, MC number), and the Unified Carrier Registration system. State DOTs enforce parallel intrastate rules and conduct roadside inspections under MCSAP agreements. Carriers managing complex operations often engage logistics and transportation law counsel to coordinate federal authority, state registration, and broker/carrier terms.

HOS rules limit driving to 11 hours within a 14-hour window after 10 consecutive hours off, with a 30-minute break required after 8 cumulative hours of driving and weekly limits of 60 hours in 7 days or 70 hours in 8 days. Short-haul, adverse driving, and personal conveyance exceptions apply with recordkeeping under 49 CFR 395.1. Violations affect CSA scores, with severe cases triggering out-of-service orders and impacting safety ratings central to automotive regulatory compliance programs.

CDL requirements under 49 CFR Part 383 mandate testing for Class A, B, and C licenses with endorsements for hazmat (H), tanker (N), passenger (P), and school bus (S), plus ELDT requirements (effective February 2022) for entry-level drivers. Medical certification (49 CFR Part 391, Subpart E) requires biennial DOT physicals with disqualifying conditions including uncontrolled diabetes, seizure disorders, and certain cardiac issues. Strict CDL compliance reduces exposure in trucking accident litigation, since plaintiffs commonly target qualification gaps and disqualifying conditions.

Hazmat carriers must comply with HMR Parts 171-180 covering classification, packaging, marking and labeling, placarding, shipping papers, emergency response information, and training (49 CFR 172.700-704). HM-181 hazard classes (explosives, gases, flammable liquids/solids, oxidizers, toxics, radioactives, corrosives, miscellaneous) each have specific conditions. Comprehensive compliance regulatory affairs programs address hazmat training (every 3 years), security plans (49 CFR 172.802), and incident reporting under § 171.16.

49 CFR Part 382 requires DOT-regulated drivers to undergo pre-employment, random (50% annual drug, 10% alcohol), post-accident, reasonable suspicion, return-to-duty, and follow-up testing through certified labs. The FMCSA Clearinghouse (effective January 2020) requires queries before hire and annually for current drivers, with reported violations triggering immediate prohibition from safety-sensitive functions. Effective drug testing protocols include MRO review, split specimen procedures, and SAP referrals.

DOT compliance reviews begin with document requests covering driver qualification files, HOS records, drug/alcohol test results, vehicle maintenance records, and incident reports, typically with 48-72 hour preparation windows. Reviews assess safety management against 49 CFR Part 385, with Unsatisfactory ratings triggering out-of-service orders within 45 days for property carriers. A structured compliance audit response preserves records, organizes responses to findings, and presents corrective action plans before final rating issuance.

The Carmack Amendment (49 U.S.C. § 14706) creates near-strict liability for interstate motor carriers and freight forwarders for damage, loss, or delay of shipments, with limited defenses (act of God, public enemy, act of shipper, public authority, inherent vice of goods). Limitations of liability require Carmack-compliant tariff language and released rate options under § 14706(c). Carriers facing claims often resolve through shipping disputes negotiation, with federal jurisdiction available where the amount exceeds $10,000 under § 14706(d).