(a) A Texas SO2 Trading Program allowance may be banked for future use or transfer in a compliance account or general account in accordance with paragraph (b) of this section.(b) Any Texas SO2 Trading Program allowance that is held in a compliance account or a general account will remain in such account unless and until the Texas SO2 Trading Program allowance is deducted or transferred under § 97.911(c) , § 97.923 , § 97.924 , § 97.925 , § 97.927 , or § 97.928 . 82 FR 48364 , Oct. 17, 2017, as amended at 85 FR 49220 , Aug. 12, 2020 82 FR 48364 , 11/16/2017; 85 FR 49220 , 9/11/2020