Thank you very much for consulting the DMV driver's license.

D certificate is a three-wheeled motorcycle D certificate, including E certificate and F certificate, which can be studied separately. If you have a C 1 and want to get a D certificate, it's not a driver's license. These are two different quasi-driver's licenses, D certificate can only be obtained by studying alone, and C certificate is B certificate. . You can learn d by yourself. Generally, you can get a D certificate without studying. After you get your d certificate. Your driver's license is: c1d.