Texas Government Code - GOV'T § 802.101. Actuarial Valuation

(a) The governing body of a public retirement system shall employ an actuary, as a full-time or part-time employee or as a consultant, to make a valuation at least once every three years of the assets and liabilities of the system on the basis of assumptions and methods that are reasonable in the aggregate, considering the experience of the program and reasonable expectations, and that, in combination, offer the actuary's best estimate of anticipated experience under the program.  The valuation must include a recommended contribution rate needed for the system to achieve and maintain an amortization period that does not exceed 30 years.

(b) On the basis of the valuation, the actuary shall make recommendations to the governing body of the public retirement system to ensure the actuarial soundness of the system.  The actuary shall define each actuarial term and enumerate and explain each actuarial assumption used in making the valuation.  This information must be included either in the actuarial study or in a separate report made available as a public record.

(c) The governing body of a public retirement system shall file with the State Pension Review Board a copy of each actuarial study and each separate report made as required by law.

(d) An actuary employed under this section must be a fellow of the Society of Actuaries, a member of the American Academy of Actuaries, or an enrolled actuary under the Employee Retirement Income Security Act of 1974 (29 U.S.C. Section 1001 et seq.).