Section 6 (2) (a) and (b) - an activity listed in Part 1 but not Part 2 of Schedule 4 (utility activities);
Adran 6 (2) (a) a (b) – gweithgaredd a restrir yn Rhan 1 ond nid Rhan 2 o Atodlen 4 (gweithgareddau cyfleustod);