· This chapter may be cited as the Uniform Interstate Family Support Act. Added by Acts 2003, 78th Leg., ch. 1247, Sec. 3, eff. Sept. 1, 2003. Sec. 159.102. DEFINITIONS. In this chapter: (1) "Child" means an individual, whether over or under the age of majority, who: (A) is or is alleged to be owed a duty of support by the individual's parent; or ...