Section 80.15 - General Prohibitions(1) All single-walled steel tanks in-service and temporarily out-of-service shall be permanently closed and removed from the ground or permanently closed in-place in compliance with 310 CMR 80.43 by August 7, 2017, except for the following tanks:(a) Consumptive use tanks; and(b) Tanks that were relined prior to August 8, 2007 in accordance with API 1631, 1983 Edition and the Owner or Operator has the following:1. A permit and approval that was issued by the Head of the Fire Department for such relining; and2. A current, legally valid warranty for said relining.Adopted by Mass Register Issue S1277, eff. 1/2/2015.Amended by Mass Register Issue 1286, eff. 1/2/2015.Amended by Mass Register Issue 1453, eff. 10/1/2021.