SISD, DISD remove mask requirement, plan for full return to the classroom Herald Democrat When students return to the classroom in this fall, they will not be required to wear masks or face coverings following an executive order by Governor Greg Abbott last week. The order bars government groups, including municipalities and school districts, from requiring that people wear face coverings. Following the order, representatives with Sherman and Denison Independent School districts plan to move forward into the fall semester without face mask requirements. Both districts have plans to return to the classroom with all students at the start of the new school year.