Sec. 302. The following persons may apply to the administrator for an exemption permit:
(1) A person who operates an airport where he sells gasoline for the exclusive purpose of propelling aircraft engines or motors.
(2) A person engaged at an airport in the business of selling gasoline for exclusive use in aircraft engines or motors.
(3) A person who operates a marine facility, except a taxable marine facility, and who sells gasoline at that facility for the exclusive purpose of propelling motorboat engines.
Such a person may apply for an exemption permit whether or not he is a licensed distributor.