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Topic 3 · Rules of the Road: Traffic Laws in California

If you are towing a trailer on a California highway, you must:

Why

Vehicles towing a trailer are limited to 55 mph and must use the far-right lane or a lane marked for slower vehicles. Where there are four or more lanes in your direction, you may use the two lanes closest to the right edge. (Handbook, Sections 6 and 8.)

Practise this in the real format

Reading one answer is not the same as sitting the test. The simulator runs the first-time adult form: 36 questions, 6 mistakes allowed, 83% to pass.

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Source: California Driver's Handbook (DL 600, rev. 6/2025), the document the DMV writes the real test from. Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.

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