19Other assumptions to be set by the actuary

19 Other assumptions to be set by the actuary (1) Any other assumptions which may be necessary are to be set by the actuary responsible for calculating the new entrant rate. (2) The assumptions are to be based on the assumptions used in the most recent actuarial valuation of the fund, unless the actuary believes, having regard to the expected future experience of the fund, that they are no longer appropriate. (3) If the actuary believes that the assumptions used in the most recent actuarial valuation are no longer appropriate, the assumptions should be set on a best estimate basis. ## Part 4 Exercise of discretion to pay a benefit greater than the benefit assumed in calculating the new entrant rate ## Part 4—Exercise of discretion to pay a benefit greater than the benefit assumed in calculating the new entrant rate