For purposes of this section, an independent small business marketer of gasoline is a person engaged in the marketing of gasoline who would be required to pay for procurement and installation of vapor recovery equipment under section
7624 of this title or under regulations of the Administrator, unless such person—
For the purpose of this section, the term “refiner” shall not include any refiner whose total refinery capacity (including the refinery capacity of any person who controls, is controlled by, or is under common control with, such refiner) does not exceed 65,000 barrels per day. For purposes of this section, “control” of a corporation means ownership of more than 50 percent of its stock.