Miss. Code Ann. § 37-24-3

As used in this chapter, the following words and phrases have the meanings as defined in this section unless the context clearly indicates otherwise: (a) “ Health care provider ” means a licensed physician or a licensed nurse practitioner, licensed physician assistant or licensed health care professional working within the person's scope of practice and under the direct supervision or written consultation of a physician. All health care providers referred to in this chapter also must be trained in the evaluation and management of concussions. (b) “ School athletic event ” means activities sanctioned by the Mississippi High School Activities Association (MHSAA) or the Mississippi Association of Independent Schools (MAIS), and school-sponsored activities in Grades 7 through 12 of schools that are not members of the MHSAA or the MAIS which activities are organized and conducted in a manner substantially similar to activities that are sanctioned by the MHSAA or the MAIS.