(1) Subject to subsection (2), a contributor is not eligible, and shall not be required, to contribute for an additional unit of pension by reason of:
(a) an increase in his salary that takes effect after 4 February 1976; or
(b) an increase in the prescribed amount that takes effect after that date.
(2) Where:
(a) a contributor ceases to be an employee after 4 February 1976 and before 1 July 1976, otherwise than by reason of death, and:
(i) pension is payable to him;
(ii) he makes an election under section 119U; or
(iii) he is entitled to benefit under section 50; or
(b) a contributor dies after 4 February 1976 and before 1 July 1976 and pension is payable in respect of him;
subsection (1) does not apply, and shall be deemed not to have applied, to or in relation to him.
(3) For the purposes of subsection (1), an increase in the salary of an employee shall be deemed to take effect as from the date upon which his salary is increased, or as from the date as from which his salary is increased, whichever is the later.