40 CFR § 60.2928 - By what date must I conduct the initial performance test?

The initial performance test must be conducted within 60 days after your OSWI unit reaches the charge rate at which it will operate, but no later than 180 days after its initial startup. For units which start-up between August 31, 2020, and December 29, 2025, the initial performance test must be conducted within 60 days after your OSWI unit reaches the charge rate at which it will operate, but no later than 180 days after its initial startup, or by February 25, 2026, whichever date is later.

[90 FR 27943, June 30, 2025]