What 107.620B-HMAMC means in plain language
FMCSR 107.620B-HMAMC is a hazardous materials (HMAMC) compliance violation. This code addresses requirements related to how hazardous materials shipments are handled, documented, or prepared for transport in your commercial motor vehicle. The regulation ensures that hazmat cargoes meet specific federal standards before leaving the shipper's facility or during your operation.
When you receive this citation, an inspector found a deficiency in how your vehicle was carrying or should have been carrying hazardous materials—whether that involves missing or incomplete documentation, improper preparation, or a failure to meet packaging or marking standards specific to the commodity in your load.
What our enforcement data actually shows
Across our 13 million+ real roadside inspection records, 107.620B-HMAMC has generated 1,820 all-time citations. In the last 12 months, we recorded 1,031 citations, and in the last 90 days, 181. This places 107.620B-HMAMC at rank #558 out of 3,036 FMCSR codes by citation volume.
The most important number for you: 0.0% out-of-service rate. Every single citation on this code resulted in a warning or non-OOS violation—zero drivers or vehicles were placed out of service. This stands in stark contrast to the all-FMCSR average OOS rate of 31.4%, meaning this violation is treated as correctable and not immediately disqualifying. Inspectors are citing the problem, but not yanking your CDL or quarantining the truck.
The citation rate has been climbing. In mid-2025 (July), we saw the peak of 157 citations in a single month. By early 2026, the rate had settled to around 68–80 citations per month, suggesting either improved compliance or seasonal variation in hazmat transport.
Who gets cited most
Over the last 180 days, Arizona leads with 30 citations, followed by Florida with 28, and New York with 24. All three states show a 0.0% OOS rate on this code, consistent with the national pattern. Ohio (22 citations), California (21 citations), South Carolina (20 citations), and Alabama (20 citations) round out the regional hotspots, again with no out-of-service placements.
Our data shows carriers such as Estes Express Lines with 13 all-time citations and Greenwood Motor Lines Inc with 12 have encountered this violation. Neither pattern suggests systemic failure—these are large, multi-thousand-unit fleets where individual driver or load-prep errors are inevitable. United Petroleum Transports Inc and Old Dominion Freight Line Inc each account for 11 citations.
How severe is this compared to similar codes
Within the same regulatory family, peer code 107.620(b) (without HMAMC specificity) has logged 2,120 citations with a 0.2% OOS rate—slightly higher than this code's 0.0%, but still exceptionally low. Code 107.608B-HMAMC, a related hazmat-specific violation, shows 387 citations and 0.3% OOS rate. The broader 376.11D1 code—a different category—shows 1,258 citations and 0.0% OOS rate.
The consistency is clear: hazmat preparation and documentation violations are rarely, if ever, grounds for immediate removal from service. Inspectors treat them as fixable documentation or procedural gaps, not as imminent safety hazards.
How to avoid it
Our co-occurrence data reveals that 107.620B-HMAMC often appears alongside hazmat emergency response and placarding violations. These patterns point to root causes:
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Verify hazmat shipping papers before loading. The top co-occurring code, 396.17C-PI (no proof of periodic inspection), suggests that incomplete or missing documentation is a common thread. Before you accept a hazmat load, confirm that the shipper has provided a complete Shipping Paper package (name, class, hazard class, emergency contact, packaging certification) and that your vehicle's HAZMAT placard documentation is current.
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Check placard condition and visibility at pre-trip. Codes 177.817A (placarding violation) and 172.516C6 (placard legibility/condition) co-occur 17 and 9 times respectively in recent violations. During your walk-around, verify that all placards are securely mounted, legible, not faded, and appropriate for the load class. A placard missing or peeling paint is a citation magnet.
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Confirm emergency response information is aboard. Codes 172.602A and 172.600C1 (emergency response info not available) co-occur frequently. Keep your vehicle's emergency response guide (ERG) or equivalent accessible, and ensure that shipper-provided emergency contact numbers are on file and legible on your shipping papers.
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Inspect the hazmat package itself. Code 177.823A (movement of damaged hazmat packages) shows up 13 times. Never accept a load where outer packaging is visibly damaged, dented, or leaking. If the shipper loads a compromised package, refuse it or request repackaging before you sign for the load.
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Know your vehicle's HAZMAT certification. The top cited vehicle makes—Freightliner (312 citations), Peterbilt (199 citations), and Kenworth (163 citations)—span all major manufacturers, indicating that the violation is equipment-agnostic. What matters is that your specific truck is placarded, certified, and documented for the hazmat class you're carrying.
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Train yourself on class-specific requirements. The co-occurrence of emergency response, placarding, and package movement codes suggests that some drivers are unaware of how different hazard classes demand different documentation and handling. If you run hazmat regularly, invest time in understanding the Emergency Response Guidebook for your common loads.