The components which requires an endorsement on your Commercial Driver License (CDL) are: D. all of the above.
CDL is an acronym for Commercial Driver License and it can be defined as a category of driver's license that is issued to an individual, in order to indicate that he or she is qualified to operate and drive certain types of automobile vehicles or to use them in specific ways.
In the United States of America, the components which requires an endorsement on your Commercial Driver License (CDL) are:
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