(1)  If –

(a) a contributor is employed otherwise than on a full-time basis on the day of the contributor's death or the day of cessation of his or her employment; and

(b) a benefit becomes payable to, or in respect of, that contributor under regulation 36 or 37  –

his or her prospective service is to be calculated in accordance with the following formula:

where –

PS is the contributor's prospective service expressed in years;

A is the period expressed in years commencing on the day immediately following the day of the contributor's death or the day of cessation of his or her employment and ending on the day on which –

(a) he or she would have attained the age of 60 years; or

(b) he or she would have achieved 25 calendar years of service –

whichever is the earlier;

B is the full-time equivalent of the contributor's length of service expressed in years as at the date of retirement or death;

C is the contributor's length of service expressed in years as at the date of retirement or death.

(2)  For the purposes of subregulation (1) , a reference to working otherwise than on a full-time basis is taken to include a reference to working on a part-time basis or participating in an accumulated leave scheme or any similar arrangement.

(3)  Despite subregulations (1) and (2) , if, after such inquiry as the Commission thinks fit, the Commission is satisfied that the hours of employment of a contributor were reduced by the contributor's Agency for medical reasons which subsequently led to his or her death or retirement on total and permanent incapacity or partial and permanent incapacity, the Commission may, for the purposes of regulations 36 and 37 , calculate the contributor's prospective service as if the reduction in hours had not occurred.