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In some areas of the USA, state or local agencies may require the use of headlights no matter the time of day or weather conditions. These 24/7 requirements can be enforced through specific statutes/regulations or through the enforcement of mandatory use road signs.
On some roadways in the USA, state or local agencies require the daytime use of headlights. These 24/7 requirements may be enforced through specific statutes/regulations or through the enforcement of mandatory use road signs.
 
==Identifying roads with headlight use requirements==
==Identifying roads with headlight use requirements==
In order to be added to Waze, roads with headlight use requirements must have regulatory (black and white) road signs. The Federal Highway Administration has guidance for how roads must be marked for headlight use requirements be enforceable.  '''Only''' 24/7 headlight use requirements should be marked in the app; although some states require headlight use during inclement weather, the Waze app '''does not''' support alerts these kinds of weather-only requirements at this time.  In addition to road signs, some jurisdictions may have public GIS data or other mapping resources that outline where headlight use requirements exist.  
In order to be added to Waze, roads with headlight use requirements must have regulatory (black and white) road signs. The Federal Highway Administration has guidance for how roads must be marked for headlight use requirements be enforceable.  '''Only''' 24/7 headlight use requirements should be marked in the app; although some states require headlight use during inclement weather, the Waze app '''does not''' support alerts these kinds of weather-only requirements at this time.  In addition to road signs, some jurisdictions may have public GIS data or other mapping resources that outline where headlight use requirements exist.  

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On some roadways in the USA, state or local agencies require the daytime use of headlights. These 24/7 requirements may be enforced through specific statutes/regulations or through the enforcement of mandatory use road signs.

Identifying roads with headlight use requirements

In order to be added to Waze, roads with headlight use requirements must have regulatory (black and white) road signs. The Federal Highway Administration has guidance for how roads must be marked for headlight use requirements be enforceable. Only 24/7 headlight use requirements should be marked in the app; although some states require headlight use during inclement weather, the Waze app does not support alerts these kinds of weather-only requirements at this time. In addition to road signs, some jurisdictions may have public GIS data or other mapping resources that outline where headlight use requirements exist.

Headlight Use Signs, MUTCD, 2009 Edition, published by FHWA; annoted by nzahn1.

Adding the 'headlight required' attribute

Only editors rank 4 and above may enable the headlights required road segment attribute

When a drivable segment is selected, enable the checkbox for Headlights required on the special properties section of the left pane. This will activate the alert for app users routed onto this segment.