(a) The board of trustees may develop a system for a participant to electronically authorize:
(1) enrollment in a coverage or benefit;
(2) contributions to a coverage or benefit; and
(3) deductions or reductions to the participant's compensation or annuity for participation in a coverage or benefit.
(b) Notwithstanding any other law, the board of trustees may permit or require an authorization covered by Subsection (a) to be made electronically.