yn y man priodol mewnosoder—

““the appropriate agency” means—

(a)

in relation to England, the Agency;

(b)

in relation to Wales, the Natural Resources Body for Wales;

“the appropriate supervisory body” means—

(a)

in relation to internal drainage districts which are wholly or mainly in England, the Agency;

(b)

in relation to internal drainage districts which are wholly or mainly in Wales, the Natural Resources Body for Wales.”;