22.—(1) When necessary in order to meet its obligations under these Regulations, a competent authority must use all reasonable endeavours to secure the cooperation of an external competent authority.
(2) A competent authority—
(a)when requested to do so by an external competent authority; and
(b)if necessary to meet that external competent authority’s obligations arising under the Directive,
must cooperate with that external competent authority.
(3) In this Part “external competent authority” (“awdurdod cymwys allanol”) means a competent authority in Northern Ireland, Scotland or England designated for the purposes of Article 4 of the Directive.