Regulated person, industrial plants
 3. (1) For the purposes of clause (a) of the definition of “regulated person” in subsection 1 (1) of the Act, a prescribed class of persons is persons who own or operate a plant that, (a)  is listed in Table 1; (b)  was described in section 3 of Ontario Regulation 560/94 (Effluent Monitoring and Effluent Limits — Metal Mining Sector), made under the Act, as it read immediately before it was revoked, as a plant to which that regulation applied; (c)  discharges sewage, other than storm water, to a surface watercourse or to a sewage works that is privately owned, and, (i)  processes chemicals into organic chemicals, plastics, or synthetic fibres (organic chemical manufacturing sector), (ii)  processes, manufactures, packages or blends inorganic chemicals (inorganic chemical sector), (iii)  mines, excavates, extracts or processes as a product graphite, gypsum, silica (quartzite), salt, talc, nepheline syenite or trap rock (industrial minerals sector), (iv)  mines, excavates, extracts or processes limestone, dolomite, or sandstone on real property, and manufactures products on the real property using the limestone, dolomite, or sandstone (industrial minerals sector), (v)  produces portland clinker, cement, lime or magnesium (industrial minerals sector), (vi)  produces electricity through fossil-fuelled thermal generation, nuclear-powered thermal generation, and plants associated with nuclear plants including heavy water plants and nuclear complex services (electric power generation sector), (vii)  produces newsprint, fine papers, coated papers, paperboard, kraft pulp, linerboard, corrugating medium, kraft paper, tissue, groundwood paper, boxboard, or container board (pulp and paper sector), (viii)  refines crude oil to produce petroleum products (petroleum sector), (ix)  manufactures metallic objects by cooling molten metal in a mould or die (metal casting sector), or (x)  uses iron ore or recycled material to produce steel (iron and steel manufacturing sector); or (d)  is a plant described in clause (c) that has temporarily suspended the operations or the discharge referred to in that clause. O. Reg. 222/07, s. 3 (1); O. Reg. 466/21, s. 1. (2) A plant does not manufacture a product using limestone, dolomite or sandstone for the purpose of subclause (1) (c) (iv) if it engages only in aggregate crushing and screening of those minerals. O. Reg. 222/07, s. 3 (2). (3) Despite subsection (1), a person who owns or operates a plant described in subsection (1) is not a regulated person during any periods where any of the following circumstances apply to the plant and the person notifies the Director of it in writing: 1.  The plant’s sewage works for sewage other than storm water are exempt under clause 53 (6) (a) or (b) of the Ontario Water Resources Act from the prohibition under subsection 53 (1) of that Act. 2.  If the plant is listed in Table 1, the person permanently ceases all operations and activities described in clause (1) (c). O. Reg. 222/07, s. 3 (3); O. Reg. 254/11, s. 2. (4) In this section, “sewage” has the same meaning as in subsection 1 (1) of the Ontario Water Resources Act; (“eaux d’égout”) “sewage works” has the same meaning as in subsection 1 (1) of the Ontario Water Resources Act; (“station d’épuration des eaux d’égout”) “surface watercourse” means any lake, river, pond, stream, reservoir, swamp, marsh or surface drainage works. (“cours d’eau de surface”) O. Reg. 222/07, s. 3 (4).