Section 270. Standard for major stationary sources (nonattainment areas)

A. For major stationary sources located in nonattainment areas, no owner or other person shall cause or permit to be discharged into the atmosphere from any affected facility any emissions in excess of that resultant from the lowest achievable emission rate, as reflected in any condition that may be placed upon the permit approval for the facility.

B. A major stationary source shall apply lowest achievable emission rate for each regulated NSR pollutant (as defined in 9VAC5-80-2010) that it would emit.

C. A major modification shall apply the lowest achievable emission rate to each new or modified emission unit which would increase the emissions of a regulated NSR pollutant.

D. In the case of a reconstruction, the determination of lowest achievable emission rate shall take into account any economic or technical limitations on compliance with applicable standards of performance (as specified in Article 5 (9VAC5-50-400 et seq.) of this chapter) which are inherent in the proposed replacements.

E. For phased construction projects, the determination of lowest achievable emission rate shall be reviewed, and modified as appropriate, at the latest reasonable time which occurs no later than 18 months prior to commencement of construction of each independent phase of the project. At such time, the owner of the applicable stationary source may be required to demonstrate the adequacy of any previous determination of lowest achievable emission rate for the source.

Historical Notes

Derived from VR120-05-0404, eff. January 1, 1985; amended, Volume 22, Issue 23, eff. September 1, 2006.

Statutory Authority

§ 10.1-1308 of the Code of Virginia; Clean Air Act (§§ 110, 112, 165, 173, 182 and Title V); 40 CFR Parts 51, 61, 63, 70 and 72.