19 Va. Admin. Code § 30-160-40
The flashing warning light shall be tested in accordance with the following sections of SAE J575:
Section 3.1—Vibration Test
Section 3.2—Moisture Test
Section 3.3—Dust Exposure Test
Section 3.4—Corrosion Test
Section 3.5—Photometry Test
Section 3.6—Warpage Test on Devices with Plastic Components.
§§ 46.2-1005 and 46.2-1102 of the Code of Virginia.
Derived from VR545-01-17 § 4, eff. February 9, 1994; amended, Virginia Register Volume 17, Issue 15, eff. June 1, 2001.