Updated · Sign codes from the California MUTCD; what they mean from the California Driver’s Handbook and Vehicle Code.

Road sign: RIGHT ONLY (R3-5)
US road sign R3-5R · regulatory signs

RIGHT ONLY

California MUTCD, sign R3-5R
In short

What does the RIGHT ONLY sign mean?

Traffic in this lane must turn right.

How regulatory signs work

They give a rule you must obey. They are rectangular unless the manual names another shape (California MUTCD, section 2B.02); the STOP sign, for example, is an octagon (California Driver’s Handbook, “Laws and Rules of the Road”).

More regulatory signs