632 LAWS OF MARYLAND. [CH. 344

retirement system as shown by actuarial valuation. Until the
first valuation the normal contribution shall be two and eighty-
nine hundredths per centum, and the accrued liability contribu-
tion shall be three and fifty-six hundredths per centum of the
annual compensation of all members.

(c) On the basis of regular interest and of such mortality
and other tables as shall be adopted by the Board of Trustees,
the actuary engaged by the Board to make each valuation
required by this subtitle during the period over which the
deficiency contribution is payable, immediately after making
such valuation, shall determine the uniform and constant per-
centage of the earnable compensation of the average new entrant,
which if contributed on the basis of compensation of such new
entrant throughout his entire period of active service would be
sufficient to provide for the payment of any death benefit or
pension payable on his account. The rate per centum so deter-
mined shall be known as the "normal contribution" rate. After
the accrued liability contribution has ceased to be payable, the
normal contribution rate shall be the rate per centum of the earn-
able salary of all members obtained by deducting from the total
liabilities of the Pension Accumulation Fund the amount of the
funds in hand to the credit of that fund and dividing the
remainder by one per centum of the present value of the prospec-
tive future salaries of all members as computed on the basis of
the mortality and service tables adopted by the Board of Trus-
tees and regular interest. The normal rate of contribution shall
be determined by the actuary after each valuation.

(d) Immediately succeeding the first valuation the actuary
engaged by the Board of Trustees shall compute the rate per
centum of the total annual compensation of all members which
is equivalent to four per centum of the amount of the total
pension arid death benefit liability on account of all members
and beneficiaries which is not dischargeable by the aforesaid
normal contribution made on account of such members during
the remainder of their active service. The rate per centum
originally so determined shall be known as the "accrued liabil-
ity contribution'' rate.

(e) The total amount payable in each year to the Pension
Accumulation Fund shall be not less than the sum of the rate
per centum known as the normal contribution rate and the ac-
crued liability contribution rate of the total compensation earn-
able by all members during the preceding year; provided, how-
ever, that the amount of each annual accrued liability contrib-
ution shall be at least three per centum greater than the pre-
ceding annual accrued liability payment, and that the aggregate
payment by the State of Maryland shall be sufficient, when