Ace your CDL exam with a great level of self-assurance! A CDL is a driver's license that allows you to operate commercial motor vehicles. Obtaining a CDL means you have the skills and capability to operate a specialized vehicle, whether it is a commercial truck, combination vehicle, school bus, or fuel tanker. The rules differ for each state and our app collects them all in a single and convenient package! Depending on your state and required CDL category you are able to study these knowledge domains: * General knowledge (required for all) * HazMat * School bus * Passenger Vehicles * Air Brakes * Combination Vehicles * Double/Triple Trailers * Tanker Vehicles * Pre-inspection Terms of use: https://driving.mapola.org/terms Privacy policy: https://driving.mapola.org/policy ************** Premium access ************** You need to buy lifetime access (paid once) or subscribe to get access to all features (such as random exam, timed quiz, incorrect questions review, bookmarks and etc.), courses and questions. The cost of the purchase is charged to your iTunes account. Subscriptions are auto-renewable and are billed at the rate and period selected depending on the subscription plan. Users’ accounts are charged for auto-renewal within 24 hours prior to the end of the current period. Subscriptions can be managed and auto-renewal can be turned off in Account Settings in iTunes after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.