58 Pa. Stat. § 473
The following words and phrases when used in this act shall have, unless the context clearly indicates otherwise, the meanings given to them in this section:
"Department." The Pennsylvania Department of Environmental Resources.
"Oil retailer." Any person who annually sells more than 500 gallons of lubricating oil in containers for use off the retailer's premises.
"Person." Any individual, trust, firm, joint stock company corporation (including a government corporation), partnership, association, State, municipality, commission, political subdivision of a state, or interstate body.
"Recycle." To prepare used oil for reuse as a petroleum product or petroleum product substitute by refining, rerefining, reclaiming, reprocessing or other means, or to prepare used oil in a manner that substitutes for a petroleum product made from new oil, provided that the preparation or use is operationally safe, environmentally sound and complies with all laws and regulations.
"Used oil." A petroleum-based or synthetic oil which is used in an internal combustion engine as an engine lubricant, or as a product used for lubricating motor vehicle transmissions, gears or axles which through use, storage or handling has become unsuitable for its original purpose due to the presence of chemical or physical impurities or loss of original properties.
"Used oil collection site." Any Pennsylvania State inspection facility, oil retailer or retail service station, or any other site which accepts used oil for recycling with no charge to the public for the service, and which has a used oil collection tank existing on the premises.
"Used oil collection tank." Any tank, whether above or below ground, into which used oil is drained.
"Used oil recycler." Any person who recycles more than 7,000 gallons of used oil annually.
"Used oil storage facility." Any facility which receives more than 10,000 gallons of used oil annually, not including a used oil collection site.
"Used oil transporter." Any person who collects and transports more than 500 gallons of used oil annually.
58 P.S. § 473