Administrative Code

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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 80. Permits for Stationary Sources

9VAC5-80-480. Emission caps.

A. The department may establish an emission cap for sources or emissions units applicable under this article when the applicant requests that a cap be established.

B. The criteria in this subsection shall be met in establishing emission standards for emission caps to the extent necessary to assure that emissions levels are met permanently.

1. If an emissions unit was subject to emission standards prescribed in the Regulations for the Control and Abatement of Air Pollution prior to the date the permit is issued, a standard covering the emissions unit and pollutants subject to the emission standards shall be incorporated into the permit issued under this article.

2. A permit issued under this article may also contain emission standards for emissions units or pollutants that were not subject to emission standards prescribed in the Regulations for the Control and Abatement of Air Pollution prior to the issuance of the permit.

3. Each standard shall be based on averaging time periods for the standards as appropriate based on applicable air quality standards, any emission standard applicable to the emissions unit prior to the date the permit is issued, or the operation of the emissions unit, or any combination thereof. The emission standards may include the level, quantity, rate, or concentration or any combination thereof for each affected pollutant.

4. In no case shall a standard result in emissions which would exceed the lesser of the following:

a. Allowable emissions for the emissions unit based on emission standards applicable prior to the date the permit is issued.

b. The emissions rate based on the potential to emit of the emissions unit.

5. The standard may prescribe, as an alternative to or a supplement to an emission limitation, an equipment, work practice, fuels specification, process materials, maintenance, or operational standard, or any combination thereof.

C. Using the significant modification procedures of 9VAC5-80-590, an emissions standard may be changed to allow an increase in emissions level provided the amended standard meets the requirements of subdivisions B 1 and B 4 of this section and provided the increased emission levels would not make the source subject to the new source review program.

Statutory Authority

§ 10.1-1308 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 12, Issue 25, eff. October 15, 1996; amended, Virginia Register Volume 17, Issue 4, eff. January 1, 2001; Volume 39, Issue 5, eff. November 23, 2022.

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