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 §101.10 ).
This web page provides point source emissions inventory data along with tools and information for 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.)
Web-based EI Reporting Instructions now available on the TCEQ YouTube Channel
- 2024 Emissions Inventory Guidelines (Updated 12/18/2024)
- Electronic Reporting Extract Files
- Emissions Inventory Checklist (PDF)
- EAS Contact Information and Other Resources (PDF)
- EI Reporting Requirements Map and Summary Table for Reporting Year (RY) 2024 (PDF) (Updated 1/17/2025)
- Sample RY 2024 Emissions Inventory Notification Letter and Attachments (PDF)
- Status of the 2024 Emissions Inventory (Excel 163KB) (Updated 01/31/2025)
- The 2025 Emissions Inventory Workshop will be held ONLINE Thursday January 23, 2025.
- 2025 Online Emissions Inventory Workshop Presentations (PDF) (Updated 01/15/2025)
- Web-based EI Reporting Instructions (PDF) (Updated 12/29/2016)
- Electronic Emissions Inventory File Specifications Reference Tables (zip) (Updated 01/10/2020)
- Electronic Reporting Error Messages (Excel)
- Frequently Asked Questions (PDF)
- Printing an Emissions Inventory Questionnaire (PDF)
- Emissions Inventory Requirements (§101.10)
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
- Get email and text updates on the Point Source Emissions Inventory
- Point Source Air Emissions and Air Inspection Fees
- Inspection Fees (§101.24) Emissions Fees (§101.27)
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.
| Pollutant (tpy) |
2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|
| VOC | 89,000 | 90,000 | 92,000 | 87,000 | 85,000 | 84,000 | 87,000 |
| NOX | 250,000 | 248,000 | 240,000 | 217,000 | 218,000 | 222,000 | 213,000 |
| SO2 | 353,000 | 282,000 | 215,000 | 192,000 | 212,000 | 188,000 | 159,000 |
| CO | 288,000 | 247,000 | 223,000 | 212,000 | 230,000 | 230,000 | 215,000 |
| PM10 | 46,000 | 41,000 | 41,000 | 38,000 | 40,000 | 42,000 | 38,000 |
| PM2.5 | 33,000 | 30,000 | 30,000 | 29,000 | 30,000 | 32,000 | 30,000 |
| Total (does not include PM2.5 to avoid double counting particulate matter) | 1,026,000 | 908,000 | 811,000 | 746,000 | 785,000 | 766,000 | 712,000 |
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 page and choose “Point Source Emissions Inventory” under the “Air Quality” heading. Don’t worry, you can unsubscribe at any time.
Federal Clean Air Act (FCAA) Section 185 Fee and Stakeholder Group
The FCAA requires a penalty fee to be imposed if an area fails to meet its severe or extreme attainment date for an ozone national ambient air quality standard (NAAQS). The fee applies to major stationary sources of ozone precursor emissions (nitrogen oxides or volatile organic compounds) located in the ozone nonattainment area.
An FCAA Section 185 Fee stakeholder group will provide input on developing state regulations to implement a TCEQ Section 185 Fee program specific to the 2008 eight-hour ozone national ambient air quality standards. Get notified of group meetings.
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 §101.10 .
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 | |
|---|---|---|---|
| Internal Combustion Engine Calculations Template | Use for calculation of internal combustion engine data. TCEQ-21005 (11/2024) |
||
| Marine Vessel Loading Calculations Template | Use for each product loaded, complete the information listed and specify actual values. TCEQ-21006 (11/2024) |
||
| Railcar Truck Loading Calculations Template | Use for each product loaded, complete the information and specify actual values (not permitted values). TCEQ-21007 (11/2024) |
||
| Storage Tank Calculations Template | Use for oil and gas storage tank calculations. TCEQ-21008 (11/2024) |
||
| Glycol Dehydration Calculation Template | This form is used to calculate Glycol Dehydration for emissions reporting. TCEQ-21009 (11/2024) |
||
| Path Deactivation Form | Use the Path Deactivation Request form to unlink an active FIN from the EPN. TCEQ-20737 (10/23/2015) |
Path Deactivation Sample Form and Instructions | |
| Name Revision Request | 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) |
FIN, CIN, EPN Revision Request Forms and Instructions | |
| Abatement Device Information | This form may be used to add an abatement device to an account. TCEQ-20037 (11/10/2011) |
Abatement Device Sample Form and Instructions | |
| Emissions Factors for Equipment Leak Fugitive Components | Addendum to RG 360-A (January 2008) |
||
| Contaminants (xlsx) | A list of contaminant (pollutant) names and codes used in the emissions inventory. (10/31/2024) |