US road sign · regulatory signs
20 MIN PARKING
What does the 20 MIN PARKING sign mean?
The time limit for parking at this green curb (CVC 21458(a)(4)).
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”).
