In this subchapter:
(1) "Cafeteria plan" means a plan as defined and authorized by Section 125, Internal Revenue Code of 1986.
(2) "Employee" means an active, contributing member of the Teacher Retirement System of Texas who:
(A) is employed by a district, other educational district whose employees are members of the Teacher Retirement System of Texas, participating charter school, or regional education service center;
(B) is not a retiree eligible for coverage under the program established under Chapter 1575, Insurance Code;
(C) is not eligible for coverage by a group insurance program under Chapter 1551 or 1601, Insurance Code; and
(D) is not an individual performing personal services for a district, other educational district that is a member of the Teacher Retirement System of Texas, participating charter school, or regional education service center as an independent contractor.
(3) "Participating charter school" means an open-enrollment charter school established under Subchapter D, Chapter 12, that participates in the program established under Chapter 1579, Insurance Code.
(4) "Regional education service center" means a regional education service center established under Chapter 8.