Free California and Texas DMV practice tests and the US citizenship civics test

Pass by the Book is a free practice site for the written tests that California issues licenses and certificates on: the Class C driver’s license, the motorcycle license, the commercial driver’s license, the noncommercial Class A and B license for large RVs and trailers, and the Firearm Safety Certificate. In Texas, the Class C driver license, the Class M motorcycle and the commercial driver license knowledge tests. Also the civics test of the US naturalization interview: all 128 questions of the 2025 version and the 100 of the 2008 one.

Every question is written from a specific passage of the official handbook for that test, and every answer links to the page it comes from. There is nothing copied from other prep sites, no questions from memory and no guesswork: if the site and the handbook ever disagree, the handbook is right.

Study in three ways. Practice goes through the bank in short sets and keeps the questions you missed. The exam mode draws a fresh test every time, in the length and with the passing score of the real one. The mistakes mode brings back only what you got wrong. Progress stays in your browser: no account, no sign-up.