By what date must I conduct initial performance tests or other initial compliance demonstrations?

§ 63.8686 By what date must I conduct initial performance tests or other initial compliance demonstrations?

(a) For existing affected sources, you must conduct initial performance tests no later than 180 days after the compliance date that is specified for your source in § 63.8683 and according to the provisions in § 63.7(a)(2).

(b) As an alternative to the requirement specified in paragraph (a) of this section, you may use the results of a previously-conducted emission test to demonstrate compliance with the emission limitations in this subpart if you demonstrate to the Administrator's satisfaction that:

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