Texas Education Code - EDUC § 25.083. School Day Interruptions

(a) The board of trustees of each school district shall adopt and strictly enforce a policy limiting interruptions of classes during the school day for nonacademic activities such as announcements and sales promotions.  At a minimum, the policy must limit announcements other than emergency announcements to once during the school day.

(b) The board of trustees of each school district shall adopt and strictly enforce a policy limiting the removal of students from class for remedial tutoring or test preparation.  A district may not remove a student from a regularly scheduled class for remedial tutoring or test preparation if, as a result of the removal, the student would miss more than 10 percent of the school days on which the class is offered, unless the student's parent or another person standing in parental relation to the student provides to the district written consent for removal from class for such purpose.