In addition to the requirements incorporated by reference, owners or operators of existing tank systems shall comply with 40 CFR 265.193 (relating to containment and detection of releases) by January 16, 1995, except that owners and operators of existing tank systems for which the age cannot be documented, shall comply with 40 CFR 265.193 by January 16, 1996.
25 Pa. Code § 265a.193