18.—(1) If sub-paragraph (a) or (b) of Article 17(2) applies the Department shall as soon as practicable after making any correction or deciding not to make any correction issue a notice in writing (a correction notice) which—
(a)specifies the correction of the error; or
(b)gives notice of its decision not to correct such an error.
(2) The Department shall give the correction notice to—
(a)the applicant;
(b)if the applicant is not the owner of the land in respect of which the original decision was made, the owner;
(c)if the correction was requested by any other person, that person.