12 Va. Admin. Code § 5-421-2900
Heating, ventilating, and air conditioning systems shall be designed and installed so that make-up air intake and exhaust vents do not cause contamination of food, food-contact surfaces, equipment, or utensils.
§§ 35.1-11 and 35.1-14 of the Code of Virginia.
Derived from Virginia Register Volume 18, Issue 10, eff. March 1, 2002.