Arkansas Highway Police stopped a truck driver hauling large quantities of nitrous oxide, also called “puff gas,” without proper paperwork or safety labels. The driver was caught during a routine check. He carried the hazardous gas without showing required shipping papers or hazmat placards on the truck. The driver also lacked the legal hazmat endorsement for transporting such dangerous goods. Officers found many nitrous oxide tanks in the trailer, but these were not declared. Nitrous oxide is legally classified as hazardous material (UN1078) and must be properly marked and handled by qualified drivers. In addition, the driver, who held a non-domiciled Commercial Driver’s License from California, failed an English proficiency test. An officer said, "You can't drive because you don't speak English well enough." The driver was placed out of service, meaning the truck cannot move until a qualified driver arrives. No immigration checks were done, as officials said enforcement is only triggered if there is a criminal issue, which refers to ICE investigations. The incident was recorded on dashcam and bodycam and shared online by American Truckers United. The group criticized weak enforcement of rules on non-domiciled CDLs and undeclared hazardous loads, calling on Arkansas leaders to strengthen safety checks and protect public safety on highways.