020-1 Wyo. Code R. § 1-32
(a) Owners and/or operators with UST systems permanently closed after December 22, 1988, or AST systems permanently closed after the date of these regulations shall comply with Section 31.
(b) When directed by the Solid and Hazardous Waste Administrator, the owner and/or operator of a storage tank system or an owner of a site upon which such a system was located that was permanently closed before the effective date of these regulations shall complete an MSA in accordance with Section 29. When directed by the Solid and Hazardous Waste Administrator, abandoned storage tank systems shall be permanently closed in accordance with Section 31. The Solid and Hazardous Waste Administrator may take action under this Section if the department determines that releases from the storage tank system pose a current or potential threat to human health and/or the environment. Owners and/or operators of UST systems permanently closed before December 22, 1988, shall have complied with API Recommended Practice 1604, as referenced in Section 2.
020-1 Wyo. Code R. § 1-32
Adopted, Eff. 6/29/2018.