NR 438.03(1)(a)(a) Except as provided under par. (am), any person owning or operating a facility that emits an air contaminant in quantities above applicable reporting levels, except indirect sources of air pollution, shall annually submit to the department an emissions inventory of annual, actual emissions or, for primary particulate matter, primary PM10, primary PM2.5, sulfur dioxide, nitrogen oxides, carbon monoxide and volatile organic compounds, throughput information sufficient for the department to calculate its annual, actual emissions. The reportable air contaminants and applicable reporting levels are listed in Table 1 in this chapter.

NR 438.03(1)(af)(af) The owner or operator of a facility shall annually submit to the department an emissions inventory for sulfur dioxide, nitrogen oxides, carbon monoxide, volatile organic compounds, primary PM10, primary PM2.5, ammonia, and lead and lead compounds, if the facility meets any of the following:

NR 438.03(1)(am)(am)

NR 438.03(1)(am)1.1. The owner or operator of a facility described by an SIC code listed in Table D of s. NR 445.11, or that has annual actual emissions of less than 5 tons of particulate matter and less than 3 tons of volatile organic compounds, may limit the information on hazardous air contaminants included in the annual emissions inventory to those contaminants identified under s. NR 445.11 (1) (a) or (b).

NR 438.03(1)(am)2.2. Notwithstanding subd. 1., the owner or operator shall continue to report annual emissions of any air contaminant reported in prior calendar years for the facility, provided annual, actual emissions are greater than the reporting level in Table 1.

NR 438.03(1)(am)3.3. The owner or operator of a facility may exclude emissions from any of the following emissions units, operations, or activities from the annual emissions inventory:

NR 438.03(1)(am)3.a.a. Maintenance of grounds, equipment, and buildings, including lawn care, pest control, grinding, cutting, welding, painting, woodworking, general repairs, and cleaning, but not including use of organic compounds as clean-up solvents.

NR 438.03(1)(am)3.h.h. Convenience space heating units with combined heat input capacity of less than 5 million Btu per hour that burn gaseous fuels or liquid fuels.

NR 438.03(1)(am)4.4. The owner or operator of a facility with emissions exceeding the reporting thresholds in this section shall include all emission units, operations, or activities in the annual emissions inventory. The owner or operator of a facility may exclude emissions information required under s. NR 438.04 (3) (d) for any emissions unit, operation, or activity that meets the criteria under s. NR 407.05 (4) (c) 9. a. If the department determines that an emission unit, operation, or activity does not meet the criteria under s. NR 407.05 (4) (c) 9. a., the owner or operator shall include the emissions in the annual emissions inventory.

NR 438.03(1)(b)(b) When preparing an emissions inventory, the owner or operator of a facility may rely on information in an approved safety data sheet. Trace contaminants need not be reported if they constitute less than 1 percent (10,000 parts per million) of the material, or 0.1 percent (1,000 parts per million) of the material if the air contaminant is listed with a control requirement under column (i) of Table A, B or C of s. NR 445.07, unless a hazardous air contaminant is formed in processing the material.

NR 438.03(1)(c)(c) Notwithstanding par. (a), the department may require any facility to submit an emissions inventory of its annual, actual and maximum theoretical air contaminant emissions.

NR 438.03(1)(d)(d) Any facility that generates or holds emission reduction credits shall report the credits separately to the annual emissions inventory.

NR 438.03(2)(2) Reporting deadline. Emissions inventories required under this section shall be submitted by March 1 of each year for air contaminants emitted during the preceding year. Through March 1, persons may be granted a 2-week submittal extension ending on March 15, when requested by email, mail, or other manner prescribed, provided the extension is considered reasonable under the circumstances by the department.