(1) If pensionable remuneration is being earned in respect of simultaneous employment by a person as a public servant in one or more than one public service body, then the public servant's pensionable remuneration in respect of one full-time employment only or the aggregated equivalent of one full-time employment only shall be taken into account to compute the referable amounts provided for in the calculation of benefits sections.

(2) Subsection (1) does not apply where a person holds more than one office or employment to which sections 21 and 24 relate and, for the purposes of the application of subsection (1), the offices and employments to which this subsection relates shall be treated as if they were one office or employment.