Natural Resources and Conservation 2009 ed - Title 31, Texas Administrative Code Author:West The rules and regulations in the Texas Administrative Code (TAC) were adopted pursuant to the Administrative Procedure Act. TAC is arranged into titles and parts. Title 31 presents Natural Resources and Conservation. Each part represents an individual state agency. Features reproduction of complete texts, images, and provisions relating to the T... more »exas Register and Administrative Code. Source notes show effective dates and locations within the Texas Register where initial adoption of section(s) and any amendments appear.« less