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Horizontal white rectangle with the legend Turn On Headlights Next 15 Miles in black text
MUTCD
R16-7
Category
regulatory
Color
white
Shape
rectangle horizontal

Turn On Headlights Next 15 Miles

Headlights are required for the next 15 miles of roadway.

Marks the start of a designated daytime-headlight zone of fixed length, often used on rural two-lane highways with frequent crashes or limited sight distance. Drivers should turn on low beams immediately and keep them on until the corridor ends.

In the same family

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Do Not Enter
Horizontal red rectangle with the words WRONG WAY stacked in large white letters.
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