40 C.F.R. § 97.180
Applicability.
Cite as 40 C.F.R. § 97.180 (2026)
A CAIR NO X opt-in unit must be a unit that: (a) Is located in a State that submits, and for which the Administrator approves, a State implementation plan revision in accordance with § 51.123(p)(3)(i), (ii), or (iii) of this chapter establishing procedures concerning CAIR opt-in units; (b) Is not a CAIR NO X unit under § 97.104 and is not covered by a retired unit exemption under § 97.105 that is in effect; (c) Is not covered by a retired unit exemption under § 72.8 of this chapter that is in effect; (d) Has or is required or qualified to have a title V operating permit or other federally enforceable permit; and (e) Vents all of its emissions to a stack and can meet the monitoring, recordkeeping, and reporting requirements of subpart HH of this part.
- Cross-references to the CFR
- 51.12372.897.10497.105