MUTCD R9-16 · Regulatory signs
Prohibits ATV or all-terrain vehicle use in the designated area
What it means
Prohibits ATV or all-terrain vehicle use in the designated area.
What to do about it
It is a regulatory sign: it states a law you must obey, not a suggestion. Ignoring it is a citable violation. (MUTCD R9-16.)
Practice this on the real test format
Signs are the part of the DMV written test people fail on, because reading them is a skill rather than a fact to memorize. Aprobify drills all 1034 of them, and tells you why each answer is what it is.
Get the appSign designations follow the MUTCD and the California MUTCD published by Caltrans; meanings are checked against the California Driver's Handbook (DL 600, rev. 6/2025). Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.
Signs in the same family
These sit next to it in the regulatory signs series — the ones most easily mixed up with it.
- R9-12 The bike lane is closed to bicycle traffic
- R9-13 Prohibits skating, skateboarding, or rollerblading in the area
- R9-14 Prohibits horseback riding in the designated area
- R9-15 Prohibits snowmobile use in the designated area
- R9-19P Supplemental plaque indicating exception for shoulder use
- R9-20 Bicycles are allowed to use the full traffic lane
