As of May 21, no Texas Government entity at the State, County, or Local/City Level may issue a mask mandate or requirement. Violating entities are subject to a $1,000 fine per occurrence. As of June 4th, no Public School may require masks for students, teachers, staff, or visitors.

Source: GA-36 EO from Texas Website

Live -> https://gov.texas.gov/uploads/files/press/EO-GA-36_prohibition_on_mandating_face_coverings_response_to_COVID-19_disaster_IMAGE_05-18-2021.pdf)

Archive -> https://archive.is/3oyR6