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Commercial vehicles are divided into 3 classes based on size, weight, and functionality. Each class requires a different CDL. In addition to classes, you may also get endorsements, which permit you to drive specifically kinds of vehicles. For example, you'll need a special endorsement to drive a school bus.
General Knowledge Written Exam
Combination Endorsement Written Exam
An endorsement is a designation on your CDL that indicates that you're qualified to operate specific kinds of vehicles or to use them in specific ways. For example, you need an endorsement to carry passengers in a commercial vehicle, and you also need an endorsement to drive a vehicle carrying hazardous materials.
Once you've earned an endorsement, the letter that represents it will be printed on the front of your CDL, and a description on the back.
Displays on Driver's License as
A Endorsement (L restriction Removal)
Does not print on driver's license
Allows the customer to operate a commercial motor vehicles with airbrakes. The A Endorsement is implied in the absence of an L Restriction
Written exam and road test
Allows the customer to carry passengers
Allows the customer to carry hazardous materials or waste
Written exam and Transportation Security Administration threat assessment*
Allows the customer to haul liquids in bulk
This is a combination of the N Endorsement and the H Endorsement. If a customer has both, his/her Commercial Driver's License will display the X Endorsement.
Allows the customer to pull double or triple trailers. This endorsement is only available for Class A driver's licenses. However, it is not a requirement for getting a Class A driver's license
Allows the customer to transport students in a full-sized school bus
*There are 2 requirements you must meet before getting or renewing a Hazardous Materials Endorsement:
Call (877) 429-7746 or go to https://universalenroll.dhs.gov/ to begin the process.
If you're a CDL driver, you're federally required to self-certify: this means that you must tell the RMV if you will operate only in Massachusetts, or will cross state lines. You must also tell us if you're required to hold a medical certificate.
If you have an out-of-state CDL that's being renewed, upgraded, or transferred from that state, you need to complete a CDL self-certification, which includes a CDL self-certification form and a copy of the medical certificate.
You may also need to provide the RMV with documentation showing that you have received a vision, diabetes, or skills performance evaluation variance from the Federal Motor Carrier Safety Administration (FMCSA).
From area codes 339, 617, 781, and 857, or from outside Massachusetts
From all other Massachusetts area codes
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