For Virginia residents, this is from the Virginia Code:
"19VAC30-70-140. Headlamps; except motorcycles.
A. Inspect for and reject if:
1. Any motor vehicle is not equipped with headlamps of an approved type. The headlamps must be marked with the headlamp manufacturer's name or trademark, and DOT. If the headlamp bulbs are replaceable, the headlamp lens must be marked with the headlamp light source type (bulb) for which it was designed and the bulb must match the lens code."
Here is a link to the entire Safety Inspection document published by the Virginia State Police
http://www.vsp.state.va.us/downloads...15%202016).pdf
As a note, in Virginia, dealer service centers and other garages are not allowed, under penalty of law, to replace headlamp or taillight bulbs in registered on-road vehicles with customer supplied bulbs unless the bulb is clearly marked DOT.