17.—(1) This regulation applies where the competent authority grants a derogation in relation to a depopulation operation under Article 18(3).
(2) The competent authority must publish a notice, which—
(a)must be in writing;
(b)may be general or specific;
(c)may be subject to conditions;
(d)must be published in such manner as the competent authority thinks fit; and
(e)may at any time be amended, suspended or revoked in writing.