Delaware Code
Subchapter II. Lights
§ 4356. Use of flashing lights.

(a) Any motor vehicle used by a fire chief, deputy fire chief, assistant fire chief, chief engineer, fire police officer and Chief EMS officer may have placed upon such motor vehicle flashing blue and white lights. Such flashing blue and white lights shall be used by the fire chief, deputy fire chief, assistant fire chief, chief engineer, fire police officer and Chief EMS officer of any regularly established fire company or ambulance company only in the performance of their duties. The white lights permitted under this subsection shall be embedded in, or otherwise associated with the activation or operation of, the headlamps and/or the flashing turn signal lights of the vehicle.
(b) A police vehicle, a volunteer fire company-owned vehicle or a City of Wilmington bureau of fire-owned vehicle may have placed upon such vehicle flashing blue and red lights or flashing blue, red and/or white lights.

Structure Delaware Code