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Questions or Comments: siprules@tceq.texas.gov

SIP: Get Information or Contact Staff

How to get information on the State Implementation Plan for air quality in Texas and contact relevant staff.

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Sign up for email or text updates on SIP revisions and SIP-related news items

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  1. Visit our subscription page and enter your email address or phone number.
  2. Select "SIP Hot Topics (State Implementation Plan)" from the list of choices and add any other subscriptions you wish.
  3. Click "Save"

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Contact Staff

You may also call the Air Quality Planning Section program staff at the numbers below. Or e-mail us at siprules@tceq.texas.gov and put the name of your city or local area (such as “Beaumont–Port Arthur”) in the subject line.

Primary contacts

Alison Stokes, SIP Team Leader
(512) 239-4902

Regional contacts

Austin (Ozone)
Denine Calvin
(512) 239-0613

Beaumont–Port Arthur (Ozone)
Vanessa De Arman
(512) 239-5609

Corpus Christi (Ozone)
Vanessa De Arman
(512) 239-5609

Dallas–Fort Worth (Ozone)
Denine Calvin
(512) 239-0613

El Paso
Vanessa De Arman (Particulate Matter)
(512) 239-5609

Alison Stokes (Ozone, Carbon Monoxide)
(512) 239-4902

Houston-Galveston-Brazoria (Ozone)
Vanessa De Arman
(512) 239-5609

Northeast Texas (Ozone)
Denine Calvin
(512) 239-0613

San Antonio (Ozone)
Stephanie Frederick
(512) 239-1001

Victoria (Ozone)
Mary Ann Cook
(512) 239-6739

Cross-State Air Pollution Rule (CSAPR) and Interstate Transport
Alison Stokes
(512) 239-4902

Regional Haze (Statewide Visibility Impairing Pollutants - Particulate Matter, Sulfur Dioxide, and Nitrogen Oxides)
Best Available Retrofit Technology
Margaret Earnest
(512) 239-4581

Sulfur Dioxide
Mary Ann Cook
(512) 239-6739

Particulate Matter
Vanessa De Arman
(512) 239-5609

Nitrogen Dioxide
Margaret Earnest
(512) 239-4581

Lead
Alison Stokes
(512) 239-4902

Mobile Source SIP Revisions
Alison Stokes
(512) 239-4902

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