Arizona county tightens rules on gasoline fumes, forcing new equipment on local businesses

US environmental regulators approved new rules for Maricopa County, Arizona, to control fumes from gasoline and other liquid fuels. This means businesses that store or transfer these liquids will need to install updated equipment to reduce air pollution.

Local air quality rules often get updated quietly, but they force specific businesses to change how they operate. In this case, gas stations and other facilities handling organic liquids in Maricopa County will need to invest in new vapor recovery systems or other controls. This adds to their operating costs and shifts the burden of pollution control more directly onto them.