Section 36 of the Principal Act is amended -

(a) in subsection (1) -

(i) by the insertion in paragraph (a) after "benefit" of "or of a minimum contributory retirement benefit"; and

(ii) by the insertion in paragraph (b) after "benefit" of "or a member's minimum contributory retirement benefit";

and

(b) by the insertion in subsection (2) after "preserved benefit" of "or a contributory retirement benefit".