(1) “Establish” shall mean to erect, construct, build or in any way bring into being.

(2) “Highway” shall mean a highway within this Commonwealth designated by the Secretary of Transportation, and approved by the United States Secretary of Transportation, as part of the Interstate System or primary system, pursuant to Title 23, United States Code, “Highways.”

(3) “Junk” shall mean scrap copper, brass, rope, rags, batteries, paper, trash, rubber debris, waste, iron, steel, and other old or scrap ferrous or non-ferrous material, including wrecked, scrapped, ruined, dismantled or junked motor vehicles or parts thereof.

(4) “Junkyard” shall mean any outdoor establishment or place of business which is maintained, used or operated for storing, keeping, buying or selling junk, and the term shall include garbage dumps and sanitary fills.

(4.1) “Automotive dismantler and recycler” shall mean any establishment or place of business which is maintained, used or operated for storing, keeping, buying or selling wrecked, scrapped, ruined or dismantled motor vehicles, or motor vehicle parts, or both.

(5) “Scrap metal processing facility” shall mean an establishment having facilities for processing iron, steel or non-ferrous scrap metal and whose principal product is scrap iron, steel or non-ferrous scrap for sale for remelting purposes only.

(6) “Visible” shall mean capable of being seen by a person of normal visual acuity traversing the highway.

(7) “Secretary” shall mean the Secretary of Transportation.