Utah Admin. Code R307-401-9 - Small Source Exemption

(1) A small stationary source is exempt from the requirement to obtain an approval order in Sections R307-401-5 through R307-401-8 if the following conditions are met.

(a) its actual emissions are less than 5 tons per year per air pollutant of any of the following air pollutants: sulfur dioxide, carbon monoxide, nitrogen oxides, PM10, ozone, or volatile organic compounds;

(b) its actual emissions are less than 500 pounds per year of any hazardous air pollutant and less than 2000 pounds per year of any combination of hazardous air pollutants;

(c) its actual emissions are less than 500 pounds per year of any air pollutant not listed in Subsection (a) or (b) and less than 2000 pounds per year of any combination of air pollutants not listed in Subsection (a) or (b) above.

(d) Air pollutants that are drawn from the environment through equipment in intake air and then are released back to the environment without chemical change, as well as carbon dioxide, nitrogen, oxygen, argon, neon, helium, krypton, xenon should not be included in emission calculations when determining applicability under Subsections (a) through (c) above.

(2) The owner or operator of a source that is exempted from the requirement to obtain an approval order under Subsection (1) above shall no longer be exempt if actual emissions in any subsequent year exceed the emission thresholds in (1) above. The owner or operator shall submit a notice of intent under Section R307-401-5 no later than 180 days after the end of the calendar year in which the source exceeded the emission threshold.

(3) Small Source Exemption - Registration. The director will maintain a registry of sources that are claiming an exemption under Section R307-401-9. The owner or operator of a stationary source that is claiming an exemption under Section R307-401-9 may submit a written registration notice to the director. The notice shall include the following minimum information:

(a) identifying information, including company name and address, location of source, telephone number, and name of plant site manager or point of contact;

(b) a description of the nature of the processes involved, equipment, anticipated quantities of materials used, the type and quantity of fuel employed and nature and quantity of the finished product;

(c) identification of expected emissions;

(d) estimated annual emission rates;

(e) any control apparatus used; and

(f) typical operating schedule.

(4) An exemption under Section R307-401-9 does not affect the requirements of Section R307-401-17, Temporary Relocation.

(5) A stationary source that is not required to obtain a permit under Rule R307-405 for greenhouse gases, as defined in Subsection R307-405-3(9)(a), is not required to obtain an approval order for greenhouse gases under Rule R307-401. This exemption does not affect the requirement to obtain an approval order for any other air pollutant emitted by the stationary source.

Notes

Utah Admin. Code R307-401-9

Amended by Utah State Bulletin Number 2016-1, effective 12/15/2015 Amended by Utah State Bulletin Number 2018-7, effective 3/5/2018 Amended by Utah State Bulletin Number 2020-18, effective 9/3/2020 Amended by Utah State Bulletin Number 2025-06, effective 3/5/2025