(1) “RDDP” means a research, development, and demonstration project for a new or existing type II landfill unit or for a lateral expansion of a type II landfill unit.

  (2) “Recyclable materials” means glass, metal, plastics, paper products, wood, rubber, textiles, food waste, yard clippings, and other materials that may be recycled or composted.

  (3) “Recycling” means any process applied to materials that are no longer being used and that would have otherwise been disposed as waste, for the purpose of converting the materials into raw materials or intermediate or new products.

  (4) “Regional planning agency” means the regional solid waste planning agency designated by the governor pursuant to section 4006 of subtitle D of the solid waste disposal act, 42 USC 6946.

  (5) “Resource recovery facility” means machinery, equipment, structures, or any parts or accessories of machinery, equipment, or structures, installed or acquired for the primary purpose of recovering materials or energy from the waste stream.

  (6) “Response activity” means an activity that is necessary to protect the environment, natural resources, or the public health, safety, or welfare, and includes, but is not limited to, evaluation, cleanup, removal, containment, isolation, treatment, monitoring, maintenance, replacement of water supplies, and temporary relocation of people.

  (7) “Restricted use compost” means compost that is produced from class 2 compostable material, including any combination of class 1 compostable material and class 2 compostable material, that is not approved as inert under section 11553(5).

  (8) “Reuse” means to remanufacture, use again, use in a different manner, or use after reclamation.

  (9) “Rubbish” means nonputrescible solid waste, excluding ashes, consisting of both combustible and noncombustible waste, including paper, cardboard, metal containers, yard waste, wood, glass, bedding, crockery, demolished building materials, or litter of any kind that may be a detriment to the environment, natural resources, or the public health, safety, or welfare.

  (10) “Salvaging” means the lawful and controlled removal of reusable materials from solid waste.

  (11) “Scrap wood” means wood or wood product that is 1 or more of the following:

  (a) Plywood, particle board, pressed board, oriented strand board, fiberboard, resonated wood, or any other wood or wood product mixed with glue, resins, or filler.

  (b) Wood or wood product treated with creosote or pentachlorophenol.

  (c) Any wood or wood product designated as scrap wood in rules promulgated by the department.

  (12) “Sharps” means that term as defined in section 13807 of the public health code, 1978 PA 368, MCL 333.13807.

  (13) “Slag” means the nonmetallic product resulting from melting or smelting operations for iron or steel.

  (14) “Small”, in reference to a composting facility, means a composting facility to which both of the following apply:

  (a) The site at any time contains more than 500 cubic yards of compostable material but does not at any time contain 1,000 or more cubic yards of compostable material.

  (b) The site does not at any time contain 5% or more by volume of class 1 compostable material other than yard waste.