MUTCD R12-7 · Regulatory signs
Weight limits that apply to emergency vehicles
What it means
Indicates weight limits that apply to emergency vehicles.
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 R12-7.)
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.
- R12-2 Maximum weight limit per axle for vehicles
- R12-4 Both per axle and gross weight limits for vehicles
- R12-5 Weight limits specifically for trucks with visual truck symbols
- R12-6 Weight limits for special hauling or oversized vehicles
- R12-7aP Supplemental plaque indicating weight limits for emergency vehicles
- R13-1 Requires trucks over 10 tons to enter the weigh station at the next right exit
