Applicability.

A CAIR NO X Ozone Season 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(ee)(3) (i), (ii), or (iii) of this chapter establishing procedures concerning CAIR Ozone Season opt-in units; (b) Is not a CAIR NO X Ozone Season unit under § 97.304 and is not covered by a retired unit exemption under § 97.305 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 HHHH of this part.