40 C.F.R. § 60.1585
What are my requirements for meeting increments of progress and achieving final compliance?
Cite as 40 C.F.R. § 60.1585 (2026)
(a) Class I units. If you plan to achieve compliance more than 1 year following the effective date of State plan approval and a permit modification is not required, or more than 1 year following the date of issuance of a revised construction or operation permit if a permit modification is required, you must meet five increments of progress: (1) Submit a final control plan. (2) Submit a notification of retrofit contract award. (3) Initiate onsite construction. (4) Complete onsite construction. (5) Achieve final compliance. (b) Class II units. If you plan to achieve compliance more than 1 year following the effective date of State plan approval and a permit modification is not required, or more than 1 year following the date of issuance of a revised construction or operation permit if a permit modification is required, you must meet two increments of progress: (1) Submit a final control plan. (2) Achieve final compliance.