Test methods and procedures.

§ 60.123a Test methods and procedures.

(a) Initial performance tests. The owner or operator shall conduct performance tests to demonstrate initial compliance with the PM and opacity emission standards specified in § 60.122a.

(b) Periodic performance tests. Following the initial compliance demonstration required by paragraph (a) of this section, the owner or operator shall conduct periodic performance tests to demonstrate compliance with the PM and opacity emissions standards specified in § 60.122a according to the schedule specified in paragraph (b)(1) or (2) of this section.

(1) Conduct performance tests no later than 12 months following the previous compliance test.

(2) Conduct performance tests up to 24 calendar months following the previous compliance test if the previous compliance test measured PM emissions equal to or less than the concentrations specified in paragraphs (b)(2)(i) and (ii) of this section and the owner or operator has obtained approval from the Administrator for a written request to extend the period of the periodic performance test. The extension request will be deemed automatically approved if the owner or operator submits the results of a PM performance test equal to or less than the applicable concentrations specified in paragraphs (b)(2)(i) and (ii) of this section, the owner or operator submits the request for the extension within 4 months after the subject compliance test, and the Administrator does not provide a response to such request within 6 months of submission.

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