PHMSA Hazardous Materials Notice of Probable Violation Response

The situation

Marco, 48, owns a small chemical distribution company (Chem-West Supply LLC) in Albuquerque, 12 employees, $3.2M annual revenue. His company ships industrial cleaning solvents and pool chemicals classified as ORM-D and Division 3 flammable liquids.

In March 2026, a PHMSA compliance inspector conducted a roadside check of one of Marco's delivery trucks. The inspector found: (1) the shipping papers listed the wrong UN number for one of the solvents; (2) the driver was missing the Emergency Response Guidebook; (3) one package had a labeling deficiency.

Six weeks later, Marco received a PHMSA Notice of Probable Violation: proposed civil penalty of $34,750 across three violation counts.

Marco has 30 days to respond. He doesn't know: Should he admit or contest? What mitigating factors reduce the penalty? PHMSA's penalty matrix says the maximum for his violations is $84,000, but the proposed $34,750 is already 40% of that, and Marco believes his company genuinely does try to comply. He had already corrected all three deficiencies the same week as the inspection.

A hazmat transportation attorney quoted him $7,500 for "case review and NOPV response preparation." Marco's CPA told him the penalty + attorney fees would wipe out two months of net income.

Who receives this

Small hazmat carriers (trucking companies transporting hazardous materials), small chemical distributors, small manufacturers who ship hazmat, primarily those receiving NOPVs for documentation and packaging violations rather than catastrophic spills. Secondary: freight brokers and logistics companies receiving hazmat shipper NOPVs.

Why the agency will not advise you

PHMSA's enforcement counsel cannot advise the respondent on how to respond to their own NOPV. PHMSA's penalty matrix and mitigation factors are public documents, the analysis of how they apply to a specific case is what costs $7,500. The 30-day clock creates urgency.

Key facts, with sources

• PHMSA's enforcement data (PRIMIS) shows hundreds of NOPVs issued annually. PHMSA's 2024 enforcement report shows civil penalty cases concentrated among small carriers, shippers, and manufacturers who lack in-house hazmat compliance counsel. The 30-day response window is fixed by 49 CFR § 107.313; requests for extension require a showing of good cause. The respondent's options: (1) pay the proposed penalty; (2) admit the violation and request a reduction (citing mitigating factors); (3) contest the violation by submitting a written response contesting the factual or legal basis; (4) request an informal conference with PHMSA enforcement counsel. PHMSA's penalty matrix (published in its enforcement procedures) sets minimum and maximum penalties by violation type and severity, and explicitly requires consideration of: ability to pay, prior violation history, good faith, gravity, and whether a corrective action plan has been implemented. Source: PHMSA Enforcement — Department of Transportation · Notice of Probable Violation Cases — PRIMIS Enforcement Data · PHMSA Civil Penalties — 49 CFR § 107.313
• The hazardous materials transportation compliance market for small carriers and shippers is served by a sparse, high-priced bar of transportation/hazmat attorneys at major firms (Steptoe, K&L Gates, Thompson Hine, Scopelitis) charging $500–$900/hour. Small carriers and owner-operators who receive NOPVs for documentation violations (improper shipping papers, missing emergency response information, labeling deficiencies) have assessment amounts of $5,000–$50,000, often less than one attorney hour for the first consultation. No self-serve PHMSA NOPV response tool has been found in any search. PHMSA's own enforcement attorneys are on the opposing side of the NOPV and cannot advise respondents. Source: PHMSA Enforcement Actions and Orders — PRIMIS · PHMSA Hazardous Materials Safety Law Division — Sample NOPV

When to bring in a professional

Self-serve responses fit routine cases: clear facts, amounts a business can absorb, and a deadline still ahead of you. Bring in a licensed professional when the amount at stake is large relative to their fee, the facts are genuinely disputed, criminal exposure is possible, or the deadline has already passed. A short paid consultation to sanity-check your plan is often worth it even when you handle the filing yourself.

All sources for this guide

1. PHMSA Enforcement — Department of Transportation
2. Notice of Probable Violation Cases — PRIMIS Enforcement Data
3. PHMSA Civil Penalties — 49 CFR § 107.313
4. PHMSA Enforcement Actions and Orders — PRIMIS
5. PHMSA Hazardous Materials Safety Law Division — Sample NOPV