Va. Code § 22.1-141.4: Definitions

As used in this article, unless the context requires a different meaning:"Certified testing, adjusting, and balancing technician" means (i) a technician, tradesperson, or apprentice certified to perform testing, adjusting, and balancing of heating, ventilation, and air conditioning systems by the Associated Air Balance Council, the National Environmental Balancing Bureau, or the Testing, Adjusting and Balancing Bureau or (ii) a person certified to perform ventilation assessments of heating, ventilation, and air conditioning systems through a certification body accredited by the American National Standards Institute."Heating, ventilation, and air conditioning system" means the equipment, distribution network, controls, and terminals that provide, either collectively or individually, heating, ventilation, or air conditioning to a building."Indoor air quality" means air quality within buildings and structures, especially as it relates to the health and comfort of building occupants.2025, cc. 632, 668.