(1) For purposes of this rule:

(a) "New building" means:

(i) any building the construction of which commenced six months after the effective date of these rules; and

(ii) any existing building in which the replacement of the electrical system is commenced six months after the effective date of these rules, in which there are more than one unit and the occupant of each such unit has control over a portion of the electric energy used in such unit.

(b) "Construction" or "replacement" commences at the time physical labor involved with the erection of the building or the actual replacement of the electrical system begins.

(c) "Affected electric utilities" are all electric utilities subject to the jurisdiction of this Commission.