HSC § 25292.05

(a) On or before December 31, 2025, the owner or operator of an underground storage tank shall permanently close that underground storage tank in accordance with Section 25298 and the regulations adopted pursuant to that section, if the underground storage tank meets either of the following conditions:

(1) The underground storage tank is designed and constructed in accordance with paragraph (7) of subdivision (a) of Section 25291 and does not meet the requirements of paragraphs (1) to (6), inclusive, of subdivision (a) of Section 25291.

(2) The underground storage tank was installed on or before January 1, 1984, and does not meet the requirements of paragraphs (1) to (6), inclusive, of subdivision (a) of Section 25291.

(b) Notwithstanding subdivision (a), the board may adopt regulations to require the owner or operator of an underground storage tank to permanently close that underground storage tank before December 31, 2025, in accordance with Section 25298 and the regulations adopted pursuant to that section, if the underground storage tank meets the conditions specified in either paragraph (1) or (2) of subdivision (a) and the underground storage tank poses a high threat to water quality or public health. The board shall consult with stakeholders before adopting regulations pursuant to this subdivision.