This is a clone of the Texas Administrative Code (TAC) for educational purposes. It is not the official version and should not be used for legal purposes. Site created Wed, 21 May 2025 21:16:51 GMT

Home > Title 30 > Part 1 > Chapter 101 >Subchapter A > Rule 101.21
TITLE 30 - ENVIRONMENTAL QUALITY
PART 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY
CHAPTER 101 - GENERAL AIR QUALITY RULES
SUBCHAPTER A - GENERAL RULES
SECTION/RULE §101.21 - The National Primary and Secondary Ambient Air Quality Standards
Chapter Review Date 11/12/2023

The National Primary and Secondary Ambient Air Quality Standards as promulgated pursuant to section 109 of the Federal Clean Air Act, as amended, will be enforced throughout all parts of Texas.

Source Note: The provisions of this §101.21 adopted to be effective January 1, 1976; amended to be effective May 7, 1979, 4 TexReg 1358.

View Official Rule