During its regular quarterly meeting April 23, the Virginia State Air Pollution Control Board unanimously approved a final regulation prohibiting the use of certain hydrofluorocarbons in specific uses. Approved by the Board following Virginia Department of Environmental Quality staff recommendations, public comment and discussion, the regulation will become effective June 1. The production and use of HFCs in the Commonwealth of Virginia, in most applications, must be discontinued by Jan. 1, 2022. HFCs are used in the manufacture of some foam products, aerosols, refrigerants, aerosols and fire extinguishers, and can have a significant impact on global warming in part due...