Banking.

(a) CAIR NO X allowances may be banked for future use or transfer in a compliance account or a general account in accordance with paragraph (b) of this section. (b) Any CAIR NO X allowance that is held in a compliance account or a general account will remain in such account unless and until the CAIR NO X allowance is deducted or transferred under § 97.142, § 97.154, § 97.156, or subpart GG or II of this part.