A.  The board of trustees shall designate an actuary who shall be the technical advisor of the board of trustees on matters regarding the operation of the funds created by the provisions of this Chapter and who shall perform such other duties as are required in connection therewith.  

B.  Immediately after the establishment of the retirement system, the actuary shall make such investigation of the mortality, service and compensation experience of the members of the system as he shall recommend, and the board of trustees shall authorize, and on the basis of such investigation, he shall recommend for adoption by the board of trustees such tables and such rates as are required in Paragraphs C(1) and (2) of this Section.  The board of trustees shall adopt tables and certify rates, and as soon as practicable thereafter, the actuary shall make a valuation based on such tables and rates of the assets and liabilities of the funds created by this Chapter.  

C.  In the year 1949 and at least once in each five-year period thereafter, the actuary shall make an actuarial investigation into the mortality, service and compensation experience of the members and beneficiaries of the retirement system and shall make a valuation of the assets and liabilities of the funds of the system, and taking into account the result of such investigation and valuation, the board of trustees shall:

(1)  Adopt for the retirement system such mortality, service and other tables as shall be deemed necessary.  

(2)  Certify the rates of contribution payable by the state of Louisiana on account of new entrants at various ages.  

D.  On the basis of such tables as the board of trustees shall adopt, the actuary shall make valuations of the assets and liabilities of the funds of the system created by this Chapter.  

E.(1)  Unless different actuarial assumptions are formally adopted and disclosed, as provided herein, the following assumptions shall determine the actuarial equivalents as used in this retirement system:

(a)  Interest shall be compounded annually at the rate of seven percent annually.  

(b)  Annuity rates shall be determined on the basis of the 1971 Group Annuity Mortality Tables.  

(2)  The board of trustees may authorize the use of interest and mortality rates in determining the actuarial equivalents which are different from the actuarial assumptions used for other purposes hereunder.  Any change in such actuarial assumptions shall be considered a part of this retirement system and shall be considered an amendment to the provisions of this Section.  In order to be effective, such change must be formally adopted by the board of trustees and disclosed to members of the retirement system.  

Redesignated from La. Rev. Stat. 17:940 by Acts 1991, No. 74, §3, eff. June 25, 1991; Acts 1992, No. 125, §1.