Regional Offices Statewide
TCEQ Headquarters
Main Switchboard: 512-239-1000
For the Hearing Impaired (TDD): 800-RELAY-TX
Office Hours: 8:00 a.m. to 5:00 p.m., Mon. thru Fri. (except holidays)
Mailing Address: Contact Name, Mail Code TCEQ P.O. Box 13087 Austin, TX 78711-3087 - Use for regular and certified mail.
Physical Address: Contact Name, Building Letter TCEQ 12100 Park 35 Circle Austin, TX 78753 - Use for express carrier deliveries (U.S. Post Office Express Mail, FedEx, UPS, etc.). - Please call your TCEQ contact to determine the exact building location before sending to the physical address.
Austin offices street map
Security procedures for visitors to the TCEQ
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