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Method · checked 12 October 2026

How the tests are written

1,530 state questions and 41 road sign questions, each written in our own words from one passage of an official source, linked to that passage, and checked again before it is published.

1. One source per state: its own handbook

For each state we read the driver handbook or manual on the state’s own site, and the state’s pages about the knowledge test and the learner permit. We never take a fact from another practice site, an app or a third-party guide. The handbook’s title, edition and the date we read it are on each state’s page.

2. Our own words

Facts belong to no one, but sentences do. Every question and explanation is written fresh from the fact; we do not copy handbook sentences or any existing practice question. At least two thirds of each state’s questions test something that state sets out in its own numbers or rules, because that is what the real test checks and what a one-size-fits-all test gets wrong; the second session checks that too.

3. One right answer, and the reason

Each question has one answer beyond argument and three or four options, with no trick wording and no “all of the above”. The explanation says why the answer is right and what the driver should do, and names its source: the handbook chapter and section, with the page where the handbook has page numbers (a few states publish theirs as web pages, and Texas’s questions cite its statutes).

4. Checked twice

A second session, separate from the one that wrote them, checks every question against the handbook passage it cites before it goes on the site. Questions it cannot confirm are rewritten or dropped. An automated check then refuses any file with a missing source, a source off the state’s official site, a duplicate question or answers bunched in one position.

5. Road signs

Signs, pavement markings and signal lights follow one national standard, the federal Manual on Uniform Traffic Control Devices (11th Edition with Revision 1, December 2025), so the road signs questions are written from it. The drawings are our own, in the standard shapes and colors.

6. Keeping up

States revise their handbooks and tests. We aim to re-read each state’s sources once a year, and we re-read a state whenever a reader tells us a rule has changed. If you find one, email hello@drivingtestpractice.app with the state and the page.

Every state’s sources

The test formats and permit rules are also in data.txt, one per line.