(a) The board of trustees of the Employees Retirement System of Texas by rule may:
(1) consider the classes of service in the Employees Retirement System of Texas as if they were, for purposes of this chapter, classes in separate statewide retirement systems; or
(2) permit a person who is retiring exclusively from retirement systems administered by the board to use the shortest length-of-service requirement provided for retirement in any class in which the person has service credit.
(b) A member of a retirement system administered by the board of trustees of the Employees Retirement System of Texas may reestablish service credit previously canceled in another retirement system administered by the board if the member holds a position included in the system of which the person is a member and has held the position for at least 12 months. The method of reestablishment and the amount to be deposited are as provided by the applicable law providing for reestablishment of service credit generally in the particular retirement system.

Terms Used In Texas Government Code 803.202


(c) A member of the Employees Retirement System of Texas who is subject to Chapter 820 is eligible to participate in the program provided by this chapter.
(d) A member of the Judicial Retirement System of Texas Plan Two who is subject to Chapter 840A is eligible to participate in the program provided by this chapter.