5.—(1) This regulation applies to agreements between an enforcing authority (“A”) and another enforcing authority (“B”) intended to facilitate the carrying out of an enforcement duty, or part of it.
(2) A may agree arrangements with B for B to carry out on A’s behalf any matters in relation to an enforcement duty that applies to A.
(3) Where an enforcement duty applies to both A and B, they may agree arrangements for performance of that duty to be divided between them in such a way as they consider to be administratively convenient.
(4) An agreement in respect of the matters in paragraph (2) or (3)—
(a)may deal with more than one listed REACH provision;
(b)must be in writing;
(c)must give sufficient particulars of the matters to which it relates; and
(d)may be made subject to limitations and conditions.
(5) Such an agreement—
(a)may be varied in writing by the parties, acting jointly;
(b)may be revoked by any party on sixty days notice in writing to the other party or parties to the agreement.