CVSA reports 5,046 hazardous-materials and dangerous-goods inspections during its June 2026 Road Blitz, with 683 vehicles placed out of service and a 13.5% combined OOS rate.
CVSA released the results September 10
The Commercial Vehicle Safety Alliance published results from its 2026 Hazardous Materials and Dangerous Goods Road Blitz on September 10. The unannounced five-day initiative took place June 8-12 in the United States and Canada and focused on vehicles transporting hazardous materials or dangerous goods.
Inspectors completed 5,046 inspections
CVSA reports 5,046 commercial motor vehicle inspections across the two countries. Of those, 4,122 were hazardous-materials inspections in the United States and 924 were dangerous-goods inspections in Canada. The figures describe this targeted initiative, not every hazmat inspection conducted in North America during 2026.
A total of 683 vehicles were placed out of service
Inspectors placed 500 U.S. vehicles out of service, a 12.1% rate, and 183 Canadian vehicles out of service, a 19.8% rate. Combined, 683 vehicles were restricted from continuing, producing a 13.5% total vehicle out-of-service rate. An OOS decision remains in effect until the cited out-of-service conditions are addressed.
Inspectors issued 1,187 CVSA decals
CVSA says inspectors affixed 1,187 decals to 794 power units and 393 trailers. A decal follows an eligible inspection that found no critical vehicle or specification cargo-tank violations on the inspected equipment. It is not a permanent exemption from later inspection and does not certify every aspect of a carrier's operation.
Shipping papers produced 265 violations
Inspectors identified 265 shipping-paper violations, 57 of which were out-of-service violations. Hazmat shipping papers must carry required descriptions and other shipment information, and their placement and accessibility matter during transportation. Drivers should verify the document against the actual shipment and follow the carrier's process for correcting discrepancies before movement.
Placards and markings remained significant findings
The initiative produced 197 placard violations, including 55 out-of-service violations, plus 64 marking violations, of which 20 were out of service. Inspectors also recorded 32 label violations. A familiar product name or routine lane does not replace the classification, communication and display requirements that apply to the specific material, quantity, package and vehicle.
Cargo securement generated 128 OOS violations
CVSA recorded 128 out-of-service cargo-securement violations. Securement is especially important for hazardous materials because package movement can damage closures or containers and lead to leaks or releases. Drivers should inspect blocking, bracing, tiedowns, orientation and segregation as applicable and repeat required inspections during the trip.
Inspectors found 29 leaking-package OOS violations
The results include 29 out-of-service package-integrity violations involving leaks. A suspected leak is not an invitation to touch, smell or improvise a repair. Stop in an appropriate location, protect people from exposure, follow emergency instructions, notify the carrier and call emergency responders when conditions require it.
Emergency information and credentials were checked
U.S. inspectors documented 73 emergency-response-information violations. The blitz also found 47 hazardous-materials registration violations, eight hazardous-materials safety-permit violations and 16 hazmat-endorsement violations. Each credential serves a different function, so possession of an H or X endorsement does not establish that the carrier's registration or safety permit is current.
Undeclared and misdeclared packages were discovered
Inspectors found five undeclared packages in the United States and 24 misdeclared dangerous-goods packages in Canada. Drivers should not guess whether an unfamiliar product is regulated or accept a load with contradictory labels, papers or package markings. Escalate the discrepancy to the shipper and carrier's hazmat specialist before transport.
Class 3 flammable liquids were the largest listed group
CVSA reports that inspectors examined 5,707 Class 1-9 packages. Class 3 flammable liquids accounted for 2,584 packages, followed by 993 Class 8 corrosives, 678 Division 2.1 flammable gases and 538 Division 2.2 non-flammable compressed gases. The distribution describes inspected packages and should not be treated as a violation rate by hazard class.
The results do not create a new hazmat rule
The Road Blitz was an inspection and compliance initiative supported by PHMSA, FMCSA and Transport Canada. CVSA's September report summarizes inspections and findings; it does not amend the Hazardous Materials Regulations, change endorsement requirements or create a new roadside-inspection deadline. Existing U.S. and Canadian rules continue to control.
A practical pre-dispatch review starts with the shipment
Before movement, confirm the driver's CDL and required endorsement, carrier registration and permit status when applicable, shipping papers and emergency-response information, package condition, labels, marks, placards, loading and securement. Compare every item with the actual material and quantity. When information conflicts, stop the release process and obtain correction from an authorized person.
Primary-source note
This report is based on CVSA's September 10, 2026 publication of the 2026 HM/DG Road Blitz results. The Alliance is composed of commercial-vehicle safety officials and industry representatives, and the initiative was supported by PHMSA, FMCSA and Transport Canada. CDL Truck Pro has preserved the separate U.S., Canadian and combined counts and has not presented the results as a new regulation.
Continue with CDL Truck Pro
Official sources
CVSA: 2026 HM/DG Road Blitz Results, September 10, 202649 CFR Part 177: Carriage by public highwayPHMSA: Hazardous Materials RegulationsFMCSA: Hazardous Materials Safety PermitsCDL Truck Pro provides educational information. Confirm licensing, safety, tax, and regulatory requirements through current official sources and qualified professionals.