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The Permit Test
No Parking (MUTCD R8-3 sign)

No Parking

regulatory sign · rectangle v · white

Parking is prohibited where posted, during the times listed.

Visual breakdown
White rectangle with a red P in a circle-and-slash, or red NO PARKING text with times.
Shape recognition
Vertical rectangle = enforceable rule; check the arrows and times on the plaque.
Color recognition
Red elements = prohibition. Red curb paint carries the same meaning.
Memory trick
Slashed P = 'P is not for you.' Always read the fine print — times and arrows define the zone.
Real-world example
A 'No Parking 7–9 AM' sign allows evening parking but earns a tow during the morning commute.
Common mistakes
Ignoring arrow direction — the restriction applies in the direction the arrow points from the sign.
Quick recall method
Slashed P = read times, follow arrows.