19.  In regulation 28 (enforcement)—

(a) after “4(2),” in sub-paragraph (a) of paragraph (1) there shall be inserted “5A(4),”;

(b) after “6(2) and (7),” in that sub-paragraph there shall be inserted “6A,” and

(c) for “and 9” in that sub-paragraph there shall be substituted “,9 and 27A(4)(a)”.