In the case of a defined benefit scheme the rules of which include an early retirement rule, notwithstanding the terms of that rule -

(a) if the actuary advises the trustees that he or she is reasonably satisfied that if the actuary were to prepare an actuarial funding certificate under section 42 having an effective date of the day on which any member’s immediate retirement benefit by virtue of that early retirement rule is expected to commence, the actuary would not certify that the scheme satisfies the funding standard provided for in section 44(1), or

(b) on or after 1 January 2016, if the actuary advises the trustees that he or she is reasonably satisfied that if the actuary were to prepare a funding standard reserve certificate under section 42 having an effective date of the day on which any member’s immediate retirement benefit by virtue of that early retirement rule is expected to commence, the actuary would not certify that the scheme satisfies the funding standard reserve provided for in section 44(2),