40 CFR §60.5368c
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If you do not submit a state or Tribal plan (or a negative declaration letter) by January 22, 2027, or if EPA disapproves your state plan, EPA will develop a Federal plan according to § 60.27a(c) through (f) to implement the emission guidelines contained in this subpart.