The Texas law is found at Sections 38.151 through 38.160 of the Texas Code. (Tex. Educ. Code Ann. §§ 38.151 through 38.160).
These sections of the Texas law are applicable to interscholastic activity and the University Interscholastic League and requires that school districts: appoint concussion oversight teams to establish return-to-play protocols; require that students may not participate in an activity during a school year until their parent/guardian signs and returns a form acknowledging receipt of concussion information; and requires a student be immediately removed from the activity by a coach, a physician, a licensed health care provider or parent/guardian, if a concussion is suspected. The student may not return to play until evaluated by a medical professional, has completed return-to-play protocols, has written clearance from the medical provider and the parent has signed a consent form allowing them to return to play. A coach may not authorize a student’s return to play. Coaches are also required to get concussion training once every two years.
Sections 38.151 through 38.160 are available on online at:
http://www.statutes.legis.state.tx.us/Docs/ED/htm/ED.38.htm (control /f and search for concussion)
The following website offers additional information regarding Texas concussion law:
http://www.uiltexas.org/health/concussions
https://www.texashealth.org/sports-medicine/Pages/Sports-Injuries/Concussion/Concussion-Training.aspx