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0 0 <br /> NLPA Standard 631 <br /> Chapter <br /> Entry, Cleaning, Interior Inspection, <br /> Repair, and Lining of Underground <br /> Storage Tanks <br /> Title as referenced in 40 CFR 280 <br /> Spill Prevention,Minimum 10-Year Life of Existing Steel Underground Storage Tanks by <br /> Lining Without the Addition of Cathodic Protection <br /> LPA Standard 631 may be used to comply with the following requirements of Volume 53 No <br /> 185 of Code of Federal Regulations 40 CFR 280 <br /> 0 CFR Part <br /> Chapter A <br /> 80.21 Upgrading of existing tanks by interior lining without the addition of cathodic protection <br /> 280.33(a) Repairs that are allowed(steel tanks) <br /> 80.33(d)(1) Internal Tightness Test <br /> Chapter B <br /> 280.21(b)(1)(ii) Future internal inspection requirements for lined tanks <br /> Chapter C <br /> 280.21(b)(2)(I) Internal Inspection of Steel Tanks for Retrofit of Cathodic Protection <br /> Chapter D <br /> 80.32 Lining of fiberglass tanks for compatibility <br /> 280.33(b) Repairs that are allowed (fiberglass tanks <br /> www.NLA4-ONLLNE.orxr (815)301-2785 <br /> National Leak Prevention.Association <br /> Convrieht1991 <br />