Criteria

Section 203.2510  Criteria For this Subpart, the emissions from a new major stationary source or major modification will be considered to cause or contribute to a violation of a NAAQS if such source or modification would exceed the following significance levels at any locality that does not or would not meet the applicable NAAQS. Pollutant Significant Level (μg/m 3 ) Annual Average 24-hour Average 8-hour Average 3-hour Average 1-hour Average SO 2 1.0 5 25 PM 10 1.0 5 PM 2.5 0.3 1.2 NO 2 1.0 CO 500 2,000