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Horizontal white rectangle with the legend Begin Daytime Headlight Section in black text
MUTCD
R16-10
Category
regulatory
Color
white
Shape
rectangle horizontal

Begin Daytime Headlight Section

Headlights are required from this point forward, even during daylight.

Marks the start of a corridor where state law or local rule requires headlights on at all times of day, typically along curvy two-lane mountain roads, tunnels of light and shadow, or high-crash rural routes. Drivers should switch on low-beam headlights as they pass this point.

In the same family

Related signs

Red octagon with white border and the word STOP in large white letters across the center.
Stop
Downward-pointing red triangle with a white interior triangle and the word YIELD in red letters.
Yield
Red circle on a square white background with the words DO NOT ENTER in white above and below a wide white horizontal bar.
Do Not Enter
Horizontal red rectangle with the words WRONG WAY stacked in large white letters.
Wrong Way
Tall yellow vertical panel reading STATE LAW at the top, a yield triangle above a walking figure in a white inset, and IN CROSSWALK at the bottom in black letters.
State Law Yield To Pedestrian In Crosswalk (In-Street)
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