As used in this chapter:
(1) “Extracurricular activity” means any intraschool activity that is outside the regular curriculum, including, but not limited to, sports and special interest clubs or groups;
(2) “Interscholastic activity” means any interschool activity that is outside the regular curriculum, including, but not limited to, sports and special interest clubs or groups which are subject to rules of the Arkansas Activities Association;
(3) “Registered volunteer” means any volunteer who, subject to Arkansas Activities Association rules and rules set by the local school district, is given written authorization by the school district to lead extracurricular activities or to assist a staff member who is a licensed employee of the school district in extracurricular activities or interscholastic activities; and
(4) “Volunteer” means any person who, of his or her own free will, provides services without any financial gain to any local school district.