Whether you’re driving through the steep and winding roads of the Ozark and Ouachita Mountains in the northern and western regions, river crossings over the Mississippi River on the eastern side, or the rolling plains and farmlands in the central and eastern part of the state, there is certainly great beauty to behold in Arkansas as well as economic opportunities for commercial drivers. With your sights set on adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL), you need to be aware of a few matters.
With the Hazmat endorsement, you are allowed to transport materials that the U.S. government has judged hazardous. In Arkansas, materials that require a Hazmat endorsement for transport may include agricultural chemicals, petroleum products, industrial chemicals, and explosives and materials for mining. Because of the level of danger involved, the endorsement process includes several hurdles to ensure your safety as well as that of the public and the environment.
You’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check as well as the DMV knowledge test. The knowledge test addresses federal regulations, substance handling, material packaging, quantity limits, and transport configurations for hazardous materials. A score of 80% on Arkansas’s knowledge test, which is made up of 30 questions, is needed (Arkansas CDL Handbook 2026).