Installation requirements for partially excluded underground storage tank systems

1. Owners and operators installing an underground storage tank system listed in subsection 3 of section 33.1-24-08-01 for the purpose of storing regulated substances (whether of single-wall or double-wall construction) shall meet the following requirements: a. Will prevent releases due to corrosion or structural failure for the operational life of the underground storage tank system; b. Is cathodically protected against corrosion, constructed of noncorrodible material, steel clad with a noncorrodible material, or designed in a manner to prevent the release or threatened release of any stored substance; and c. Is constructed or lined with material that is compatible with the stored substance. 2. Notwithstanding subsection 1, an underground storage tank system without corrosion protection may be installed at a site that is determined by a corrosion expert not to be corrosive enough to cause it to have a release due to corrosion during its operating life. Owners and operators must maintain records that demonstrate compliance with the requirements of this subsection for the remaining life of the tank. NOTE: The following codes of practice may be used as guidance for complying with this section: (a) National Association of Corrosion Engineers (NACE) International Standard "Practice SP 0285, "External Corrosion Control of Underground Storage Tank Systems by Cathodic Protection"; (b) National Association of Corrosion Engineers International Standard Practice SP 0169, "Control of External Corrosion on Underground or Submerged Metallic Piping Systems"; (c) American Petroleum Institute Recommended Practice 1632, "Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems"; or (d) Steel Tank Institute Recommended Practice R892, "Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems".