Tex. Local Government Code § 201.004

If a state law relating to the keeping of records by a local government officer or employee requires the records to be kept in a "book," "record book," or "well-bound book," or contains any similar requirement that a record be maintained in bound paper form, the record whose creation is called for in the provision may be maintained on microfilm or stored electronically in accordance with the requirements of Chapters 204 and 205 and rules adopted under those chapters unless the law specifically prohibits those methods.