NR 220.02(15) (15) Electroplating

NR 220.02(16) (16) Explosives manufacturing

NR 220.02(17) (17) Feedlots

NR 220.02(18) (18) Ferroalloy manufacturing

NR 220.02(19) (19) Fertilizer manufacturing

NR 220.02(20) (20) Fish hatcheries and farms

NR 220.02(21) (21) Food and beverage processing, miscellaneous

NR 220.02(22) (22) Glass manufacturing

NR 220.02(23) (23) Grains mills

NR 220.02(24) (24) Gum and wood chemicals manufacturing

NR 220.02(25) (25) Hospital

NR 220.02(26) (26) Ink formulating

NR 220.02(27) (27) Inorganic chemicals manufacturing

NR 220.02(28) (28) Iron and steel manufacturing

NR 220.02(29) (29) Laundries, auto and other

NR 220.02(30) (30) Leather tanning and finishing

NR 220.02(31) (31) Machinery and mechanical products manufacturing

NR 220.02(32) (32) Meat product and rendering processing

NR 220.02(33) (33) Mineral mining and processing industry

NR 220.02(34) (34) Nonferrous metals manufacturing

NR 220.02(35) (35) Oil and gas extraction

NR 220.02(36) (36) Ore mining and dressing industry

NR 220.02(37) (37) Organic chemicals manufacturing

NR 220.02(38) (38) Paint formulating

NR 220.02(39) (39) Paving and roofing materials

NR 220.02(40) (40) Pesticides and agricultural chemicals industry

NR 220.02(41) (41) Petroleum refining

NR 220.02(42) (42) Pharmaceutical manufacturing

NR 220.02(43) (43) Phosphate manufacturing