Masks will be mandatory in many Texas schools when they reopen this fall, education agency says Fri, 07/10/2020 - 12:00am Masks for students and teachers will be mandatory in counties with more than 20 reported COVID-19 cases when public schools ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Masks will be mandatory in many Texas schools when they reopen this fall, education agency says