Pension Benefits Standards Regulations, 1985 — 9
e effect of any amendment made after the prior second valuation date that retroactively increases or decreases the plan benefits; (b) the solvency ratio at the prior valuation date shall be adjusted to remove the effect of any amendment made after the prior second valuation date and before the prior valuation date that retroactively increases or decreases the plan benefits; (c) the solvency ratios at the prior valuation date and the prior second valuation date may be adjusted to increase the solvency assets by an amount not in excess of the present value of any special payment made in respect of the period between the prior valuation date and the valuation date, or in respect of the period between the prior second valuation date and the valuation date, as the case may be, but not including an additional payment referred to in subsection (6) that will be applied to reduce special payments in respect of periods after the valuation date; (d) the solvency ratio at the valuation date shall be adjusted by reducing the solvency assets at the valuation date by the amount of an additional payment referred to in subsection (6) that will be applied to reduce special payments in respect of periods after the valuation date; (d.1) the solvency ratios at the prior valuation date and the prior second valuation date shall be adjusted to increase the solvency assets by the face value of all letters of credit included in the solvency assets on the valuation date and to reduce the solvency assets by the face value of all letters of credit included in the solvency assets on the prior valuation date or prior second valuation date, as the case may be; (e) the solvency ratios at the prior valuation date and the prior second valuation date shall be adjusted to reduce the solvency assets by the present value of any reduction made under subsection (5) or under subsection (7.1) as that subsection read immediately before this section comes into force, between the prior valuation date and the valuation date or between the prior second valuation date and the valuation date, as the case may be; and (f) the solvency ratios at the prior valuation date and the prior second valuation date shall be adjusted to reflect the transfer into the plan of all of the assets of another plan between the prior valuation date and the valuation date or between the prior second valuation date and the valuation date, as the case may be, by including the assets of the transferring plan as solvency assets and the liabilities of the transferring plan as solvency liabilities. (9) The average solvency ratio shall be adjusted to include the effect at the valuation date of any amendments referred to in paragraph (8)(a) or (b). (10) The interest rate used to determine the present value of the special payments referred to in paragraphs (8)(c) and the present value of the reductions referred to in paragraph (8)(e) shall be the same interest rate that was used to determine the solvency liabilities of the plan on the prior valuation date or the prior second valuation date, as the case may be. (11) The solvency ratio at the valuation date, without the adjustments made under subsection (8) or (9), may be used as the solvency ratio for a prior valuation date or prior second valuation date in respect of which no actuarial report was filed or provided to the Superintendent. (12) An additional solvency deficiency resulting from an amendment to the plan is equal to the amount by which the increase in solvency liabilities determined in accordance with subsection (13) exceeds the solvency excess at the day before the effective date of the amendment. (13) If an amendment to the plan increases the solvency liabilities, the increase in solvency liabilities shall be valued using the actuarial assumptions and methods used in the solvency valuation of the actuarial report for the most recently completed plan year before the effective date of the amendment. (13.1) Subject to subsection (13.2), an employer,