Texas Government Code - GOV'T § 2177.002. Texas Pharmaceutical Initiative

(1) employees, dependents, and retirees of public higher education systems and institutions;

(2) Employees Retirement System of Texas members;

(3) Teacher Retirement System of Texas members;

(4) persons confined by the Texas Department of Criminal Justice or the Texas Juvenile Justice Department;  and

(5) individuals served by a program operated or administered by the health and human services system, as that term is defined by Section 531.001.