The Texas Commission on Environmental Quality (TCEQ) has submitted updated regulations for receiving delegation of EPA authority for National Emission Standards for Hazardous Air Pollutants (NESHAPs) for all sources. These regulations apply to certain NESHAPs promulgated by EPA, as adopted by the TCEQ. The delegation of authority under this notice does not apply to sources located in Indian Country. EPA is taking direct final action to approve the delegation of certain NESHAPs to TCEQ.