(a) The provisions of section 356.215 governing the contents of actuarial valuations shall apply to any local police or fire pension fund or relief association required to make an actuarial report under this section except as follows:

1. (1) in calculating normal cost and other requirements, if required to be expressed as a level percentage of covered payroll, the salaries used in computing covered payroll shall be the maximum rate of salary from which retirement and survivorship credits and amounts of benefits are determined and from which any member contributions are calculated and deducted;
2. (2) in lieu of the amortization date specified in section 356.215, subdivision 4g, the appropriate amortization target date specified in section 69.77, subdivision 2b, or 69.773, subdivision 4, clause (c), shall be used in calculating any required amortization contribution;
3. (3) in addition to the tabulation of active members and annuitants provided for in section 356.215, subdivision 4i, the member contributions for active members for the calendar year and the prospective annual retirement annuities under the benefit plan for active members shall be reported;
4. (4) actuarial valuations required pursuant to section 69.773, subdivision 2, shall be made at least every four years and actuarial valuations required pursuant to section 69.77 shall be made annually; and

5. (5) the actuarial balance sheet showing accrued assets valued at market value if the actuarial valuation is required to be prepared at least every four years or valued as current assets under section 356.215, subdivision 1, clause (6), or paragraph (b), whichever applies, if the actuarial valuation is required to be prepared annually, actuarial accrued liabilities, and the unfunded actuarial accrued liability shall include the following required reserves:

   1. (a) For active members

      1. Retirement benefits 2. Disability benefits 3. Refund liability due to death or withdrawal 4. Survivors' benefits (b) For deferred annuitants' benefits (c) For former members without vested rights (d) For annuitants 1. Retirement annuities 2. Disability annuities 3. Surviving spouses' annuities 4. Surviving children's annuities

      In addition to those required reserves, separate items shall be shown for additional benefits, if any, which may not be appropriately included in the reserves listed above.

6. (6) actuarial valuations shall be due by the first day of the seventh month after the end of the fiscal year which the actuarial valuation covers.

(b) For a relief association in a city of the first class with a population of more than 300,000, the following provisions additionally apply:

1. (1) in calculating the actuarial balance sheet, unfunded actuarial accrued liability, and amortization contribution of the relief association, "current assets" means the value of all assets at cost, including realized capital gains and losses, plus or minus, whichever applies, the average value of total unrealized capital gains or losses for the most recent three-year period ending with the end of the plan year immediately preceding the actuarial valuation report transmission date; and
2. (2) in calculating the applicable portions of the actuarial valuation, an annual preretirement interest assumption of six percent, an annual postretirement interest assumption of six percent, and an annual salary increase assumption of four percent must be used.