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To control air quality and protect our <br />environment the U. S. Environmental <br />Protection Agency (EPA) has recognized <br />the need to control hydrocarbon emissions. <br />These emissions come from various <br />sources—one of the largest is gasoline <br />refueling. <br />As far back as 1973, the EPA proposed <br />regulations that would have required the <br />installation of a type of gasoline vapor <br />recovery system known as Stage II at ser- <br />vice stations located in eight geographical <br />areas thought to be major air polluters. <br />Simply put, a Stage II system is intended <br />to prevent the escape of gasoline vapors <br />into the atmosphere while an automobile <br />is being refueled. <br />By 1987, the EPA had recognized 62 areas <br />of the country that fell short of achieving <br />attainment status required by the Clean Air <br />Act. The number is growing. <br />Since the EPA has never issued guidelines <br />for the effective control of these emissions. <br />Stage 11 vapor recovery has become an <br />increasingly complex and expensive prob- <br />lem for petroleum marketers. <br />While potential solutions to the vapor <br />recovery problem were being debated <br />and discussed, Dayco acted. Dayco's <br />expertise in design resulted in the devel- <br />opment of a system that addresses the <br />overall problem as it relates to equipment <br />manufacturers, government agencies, <br />user friendliness, reliability—and cost. <br />The Dayco System, called The PETROFL.EX <br />2000 Venturi Vapor Recovery System, was <br />designed to be the lowest cost, easiest to <br />use and most reliable vapor recovery <br />system available. <br />