13. Section 65 of the Principal Act is amended—
(a) by inserting after paragraph (1) (a) the following paragraph:
“(ab) an engagement under section 28 or 72;”;
(b) by inserting in paragraphs (1) (d) and (e) and in subsection (3) “engagement,” after “appointment,”; and
(c) by omitting from subsection (3) “or the promotion or transfer within, the Service” and substituting “or employment in the Service, or the promotion or transfer within the Service,”.