The questions included on a Spanish commercial driver's license test depend on the requirements set by the Department of Motor Vehicle of each state. In general, anyone who wants to obtain a CDL license must first pass all the knowledge tests for both the CDL class and the corresponding endorsement.
The questions on a Spanish CDL test are the same as those on the English CDL test, but they appear in a different language. The DMV provides a general guideline for the general knowledge exam and each CDL class endorsement. Samples of topics included in the guidelines are an introduction, driving safely, cargo, passengers and hazardous materials. The topics vary by class, license endorsement and specific state requirements. The topics covered appear in the state's drivers license manuals. The DMV also offers practice test bundles and cheat sheets for a fee.
Some states, such as California and New York, provide free sample questions available on the Web. The state of California offers practice tests for Classes A, B, C and M, with the Class C, or regular driver's license, practice test available in both Spanish, English and American Sign Language. The DMV in New York state offers online quizzes for a variety of topics, including traffic control, defensive driving, passing, and alcohol and other drugs. As of 2015, both states provide free driver's manuals on their official DMV sites.