(1) If:
(a) an activity in a series of activities is in one of the industry sectors mentioned in subregulation (2); and
(b) the activity and any ancillary activities to it are under the overall control of the same person;
then all of the activities will form part of the same single undertaking or enterprise.
(2) For subregulation (1), the industry sectors are as follows:
(a) Electricity distribution (263);
(b) Electricity transmission (262);
(c) Gas supply (270);
(d) Pipeline and other transport (502);
(e) Telecommunications services (580);
(f) Water supply, sewerage and drainage services (281).