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Point Source Emissions Inventory

Summary data and other information related to the TCEQ's Point Source Emissions Inventory.

The Point Source Emissions Inventory is an annual survey of chemical plants, refineries, electric utility plants and other industrial sites that meet the reporting criteria in the TCEQ emissions inventory rule (30 TAC §101.10Exit the TCEQ ).

This Web page provides point source emissions inventory data along with tools and information of use to companies completing their annual Emissions Inventory questionnaires.

Completing and Submitting a Point Source Emissions Inventory

Many of the documents linked from this page are in Portable Document Format (PDF) or in Excel (xls) format, among others. (Help with PDF.)

YouTube logo Web-based EI Reporting Instructions now available on the TCEQ YouTube Channel

2017 EI Revisions for El Paso County Due February 11, 2022

2019 Houston-Galveston-Brazoria, Dallas Fort-Worth, and Bexar County Point Source EI Revisions Due July 9, 2021

Important Documents and Information Related to the Point Source Emissions Inventory

Point Source Emissions Inventory Trends

The table below provides point source emissions data for the last five completed calendar years, including information on routine industrial emissions in tons per year (tpy) for the sources that met the reporting requirements of Rule 101.10 and submitted an emissions inventory for that year. It lists the following pollutants: volatile organic compounds (VOC), nitrogen oxides (NOx), sulfur dioxide (SO2), carbon monoxide (CO), and particulate matter less than ten microns in diameter (PM10). Note that Inventory Trends are rounded to the nearest thousand.

2015 2016 2017 2018 2019 2020
VOC 98,000 90,000 89,000 90,000 91,000 88,000
NOX 259,000 251,000 250,000 248,000 240,000 217,000
SO2 335,000 319,000 353,000 282,000 215,000 191,000
CO 251,000 270,000 288,000 246,000 223,000 212,000
PM10 46,000 44,000 46,000 41,000 41,000 38,000
PM2.5 33,000 32,000 33,000 30,000 30,000 29,000
Total (does not include PM2.5 to avoid double counting particulate matter) 989,000 974,000 1,026,000 909,000 811,000 747,000

Point Source Emissions Inventory Email and Text Updates

Get email or text updates and announcements for completing a point source emissions inventory. Visit our subscription pageExit the TCEQ and choose “Point Source Emissions Inventory” under the “Air Quality” heading. Don’t worry, you can unsubscribeExit the TCEQ at any time.

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Detailed Data from the Point Source Emissions Inventory

Point source emissions inventory data is stored in our State of Texas Air Reporting System (STARS). Only those sites whose emission rates exceed the reporting applicability levels found in( 30 Texas Administrative Code 101.10Exit the TCEQ ) are tracked. Currently, there are approximately 2,000 industrial sites updating emissions annually.

Site level summary emissions data is available in MS Excel format for inventory years 2014 through 2020: Download the file 2014-2020statesum.xlsx (1533K). The emissions are represented in tons per year during routine operations.

To obtain site specific emissions inventory reports such as: 1) Path List 2) Contaminant Summary Report 3) Emissions Inventory Questionnaire 4) Actual History Report and 5) Air Emission Inventory, follow the instructions listed under the application/pdfEmissions Inventory ReportsExit the TCEQ.

Customize data extracts are available and may require a fee. To request customize data extracts, complete the application/pdfEmissions Data Request Form (PDF) and email to:, to the attention of the relevant staffer.

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Tools for Completing the Point Source Emissions Inventory Questionnaires

The following information is for the benefit of those companies submitting an annual emissions inventory report under 30 TAC §101.10Exit the TCEQ .

Help with completing the inventory may also be obtained by calling 512/239-1773 during regular business hours.

Point Source Emissions Inventory Tools

Form/File Description Sample Form/Instructions
application/pdfPath Deactivation FormExit the TCEQ Use the Path Deactivation Request form to unlink an active FIN from the EPN.
TCEQ-20737 (10/23/2015)
application/pdfPath Deactivation Sample Form and InstructionsExit the TCEQ
application/pdfName Revision RequestExit the TCEQ This form should be used to summarize changes in FINs, Control device Identification Numbers (CINs) and/or Emission Point Numbers (EPNs.)
TCEQ-20041f (10/01/2008)
application/pdfFIN, CIN, EPN Revision Request Forms and InstructionsExit the TCEQ
application/pdfAbatement Device InformationExit the TCEQ This form may be used to add an abatement device to an account.
TCEQ-20037 (11/10/2011)
application/pdfAbatement Device Sample Form and InstructionsExit the TCEQ
application/pdfEmissions Factors for Equipment Leak Fugitive ComponentsExit the TCEQ
Addendum to RG 360-A (January 2008)
Contaminants (xls)Exit the TCEQ A list of contaminant (pollutant) names and codes used in the emissions inventory.