The Texas Natural Resource Conservation Commission will hold a public hearing to discuss the proposed changes to the region’s clean air plan, including the controversial move to relax industrial nitrogen oxide controls, on Monday, July 22 at 10 am at City Hall Council Chambers, 901 Bagby. Written comments can also be sent by July 22 to Kelly Keel, TNRCC, SIP Development Team, MC-206, P.O. Box 13087, Austin, TX 78711-3087; fax: 512-239-4808; or email: siprules@tceq.state.tx.us.