(1) For the purposes of the definition of cathodic protection system in section 3 of the Act, a prescribed system is a system that—
(a) uses one or more galvanic anodes with a total output of more than 250 milliamperes connected at a single point to a structure to provide intentional cathodic protection; or
(b) uses impressed current connected at a single point to a structure to provide intentional cathodic protection.
(2) For the purposes of the definition of cathodic protection system in section 3 of the Act, a prescribed system does not include a system that—
(a) is designed to protect the internal surfaces of a structure if the current produced by the system is isolated from the external environment; or
(b) protects a marine vessel that is not permanently moored; or
(c) protects a fixed offshore structure not electrically connected with land above sea level.
(3) For the purposes of the definition of mitigation system in section 3 of the Act, a system that uses electrolysis drainage bonds and associated apparatus, cable and drainage equipment is a prescribed system.