5. For the purpose of the definition of “exempt water discharge activity”, the requirements in Wales are—
(a)that a water discharge activity—
(i)falls within a description in Part 2 of Schedule 3, and
(ii)satisfies, in relation to an activity of that description, the relevant conditions specified in that Part,
(b)that the water discharge activity is registered and, subject to paragraph 13(10) of this Schedule, for a water discharge activity that falls within a description in—
(i)paragraph 1 of Part 2 of Schedule 3, the operator is registered in relation to the activity, or
(ii)paragraph 2 of Part 2 of that Schedule, the occupier is registered in relation to the activity, and
(c)that the water discharge activity does not cause pollution of inland freshwaters, coastal waters or relevant territorial waters.