21 Del. C. § 4354: Standards for lights on snow removal equipment.

(a) The Department of Safety and Homeland Security shall adopt standards and specifications applicable to head lamps, clearance lamps, identification and other lamps on snow removal equipment when operated on the highways of this State in lieu of the lamps otherwise required on motor vehicles by this subchapter. Such standards and specifications may permit the use of flashing lights for purposes of identification on snow removal equipment when in service upon the highways. The standards and specifications for lamps referred to in this section shall correlate with and, so far as possible, conform with those approved by the American Association of State Highway Officials.

(b) It shall be unlawful to operate any snow removal equipment on any highway unless the lamps thereon comply with and are lighted when and as required by the standards and specifications adopted as provided in this section.