4 Va. Admin. Code § 25-40-260
Areas containing safety or health hazards that are not immediately obvious to personnel shall be barricaded or posted with warning signs specifying the hazard and proper safety procedures.
§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.
Derived from VR480-05-1.2 § 2.17, eff. July 19, 1989; amended, Virginia Register Volume 25, Issue 20, eff. July 8, 2009.