40 CFR 63.2261 - By what date must I conduct performance tests or other initial compliance demonstrations?

Regulations last checked for updates: Feb 13, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026

View all text of Subpart DDDD [§ 63.2230 - § 63.2292]

§ 63.2261 - By what date must I conduct performance tests or other initial compliance demonstrations?

(a) You must conduct performance tests upon initial startup or no later than 180 calendar days after the compliance date that is specified for your source in § 63.2233 and according to § 63.7(a)(2), whichever is later.

(b) You must conduct initial compliance demonstrations that do not require performance tests upon initial startup or no later than 30 calendar days after the compliance date that is specified for your source in § 63.2233, whichever is later.

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.

cite as: 40 CFR 63.2261