40 CFR § 60.5085
What are my requirements for meeting increments of progress and achieving final compliance?
June 9, 2020
If you plan to achieve compliance more than 1 year following the effective date of state plan approval, you must meet the two increments of progress specified in paragraphs (a) and (b) of this section.
(a) Submit a final control plan.
(b) Achieve final compliance.