19 Va. Admin. Code § 30-160-45
The flashing warning light shall meet the requirements of the following sections of SAE J575 as applicable:
Section 4.1—Vibration Test Requirements
Section 4.2—Water Spray Test Requirements
Section 4.3—Water Submersion Test Requirements
Section 4.4—Dust Exposure Test Requirements
Section 4.5—Corrosion Test Requirements
Section 4.6—Photometry Design and Performance Requirements
Section 4.7—Warpage Test Requirements.
§§ 46.2-1005 and 46.2-1102 of the Code of Virginia.
Derived from Virginia Register Volume 17, Issue 15, eff. May 9, 2001.