(1) inspect the cathodic protection performance(a) in the case of a sacrificial anode system, in accordance with CAN/ULC Standard S603.1, External Corrosion Protection Systems for Steel Underground Tanks for Flammable and Combustible Liquids, published by Underwriters’ Laboratories of Canada; and
(b) in the case of an impressed current cathodic protection system where such system is an addition to an underground petroleum equipment installation, in accordance with NACE Standard SP0169 Control of External Corrosion on Underground or Submerged Metallic Piping Systems or NACE Standard SP0285, Corrosion Control of Underground Storage Tank Systems by Cathodic Protection, published by Nace International; and