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A commercial driver's license (CDL) is required to drive large or specialized vehicles in Maryland, such as tractor-trailers, buses, and vehicles carrying hazardous materials. Find what you need below.
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Get or renew a CDLFind out what's required, what to bring, and how to apply — whether you're getting your first CDL or renewing one
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CDL classifications, endorsements and restrictionsCDLs come in different classes based on the vehicle you drive. You may also need endorsements for certain cargo or passengers. Find out what applies to you.
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Medical certification requirementsCDL holders must meet certain health standards. Learn what certifications you need and how to submit them.
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CDL disqualification and reinstatementCertain violations can affect your ability to hold a CDL. Learn what can disqualify you, how long a disqualification lasts, and how to apply for reinstatement.
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