Federal Register notice: U.S. Environmental Protection Agency approval of parts of the TCEQ's March 9, 2005, revision to the TxLED rules.
Texas Low Emission Diesel (TxLED) Program
Information relating to the TxLED program, approved alternative diesel fuel formulations, producer/importer registration forms, quarterly reporting forms, alternative emission reduction plan (AERP) forms, and regulatory guidance. The TxLED Program is implemented to reduce emissions of nitrogen oxides from diesel-powered motor vehicles and non-road equipment.
Basic Requirements
The TxLED regulations apply to all diesel fuel sold or supplied as fuel for motor vehicles and non-road equipment operating in 110 central and eastern Texas counties.
TxLED must contain no more than 10 percent aromatic hydrocarbons by volume and must have a cetane number of 48 or greater, or else must use an approved alternative formulation or comply with the designated alternative limits.
Diesel producers may also use an approved alternative emission-reduction plan to comply with the TxLED regulations.
Diesel fuel producers and importers that produce or import diesel fuel for use in the affected 110 counties are required to register with the TCEQ and submit quarterly reports.
TxLED registration forms and TxLED quarterly reporting forms are supplied by the TCEQ.
- Affected Texas Counties
- Approved Alternative Diesel-Fuel Formulations
- Alternative Emission-Reduction Plans
- Registration Requirements and Forms
- Quarterly Reporting Requirements and Forms
- Draft Regulatory Guidance Document
Related Rules
Title 30 Texas Administrative Code (30 TAC) 114.6 — Low Emission Fuel Definitions
30 TAC 114.312–114.319 — Low Emission Diesel
Related Topics
A campaign by the U.S. Environmental Protection Agency to reduce diesel emissions by working with manufacturers, fleet operators, air quality professionals, environmental and community organizations, and state and local officials.
Federal Register notice: U.S. Environmental Protection Agency approval of the TCEQ's April 26, 2006, May 9, 2007, and May 23, 2007, revisions to the TxLED rules.
Publication EPA420-P-01-001 (July 2001) describes the Unified Model.
Relating to additive-based TxLED alternative diesel fuel formulations.
More Questions? Contact the TxLED Program!
For more information, please contact Michael Regan, Air Quality Planning Section, at 512-239-2988 or email aqp@tceq.texas.gov and specify “TxLED Program” in the subject line.
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Featured Items
Texas Low Emission Diesel (TxLED) Stakeholder Group
Information about the TxLED Stakeholder Group, including meeting minutes and a schedule of future meetings.
Information about the TxLED Stakeholder Group, including meeting minutes and a schedule of future meetings.
Topics Under this Category
Approved TxLED Alternative Diesel Fuel Formulations
Diesel fuel blends or additive blends approved by the TCEQ as alternative diesel fuel formulations for Texas Low Emission Diesel (TxLED) may be used by producers to comply with the TxLED regulations.
Diesel fuel blends or additive blends approved by the TCEQ as alternative diesel fuel formulations for Texas Low Emission Diesel (TxLED) may be used by producers to comply with the TxLED regulations.
Draft Regulatory Guidance for Texas Low Emission Diesel
Link to common questions and answers regarding the TCEQ's implementation and enforcement of the Texas Low Emission Diesel (TxLED) rules and requirements.
Link to common questions and answers regarding the TCEQ's implementation and enforcement of the Texas Low Emission Diesel (TxLED) rules and requirements.
Texas Low Emission Diesel (TxLED) Stakeholder Group
Information about the TxLED Stakeholder Group, including meeting minutes and a schedule of future meetings.
Information about the TxLED Stakeholder Group, including meeting minutes and a schedule of future meetings.
TxLED Affected Counties
List of 110 Texas counties in which the Texas Low Emission Diesel (TxLED) regulations apply. Map, rules, contacts.
List of 110 Texas counties in which the Texas Low Emission Diesel (TxLED) regulations apply. Map, rules, contacts.
TxLED Alternative Emission-Reduction Plans (AERP)
A diesel-fuel producer may use an AERP to demonstrate compliance with the Texas Low Emission Diesel (TxLED) regulations.
A diesel-fuel producer may use an AERP to demonstrate compliance with the Texas Low Emission Diesel (TxLED) regulations.
TxLED Producer and Importer Registration
All diesel fuel producers and importers must register with the TCEQ by no later than 45 days after the first date that diesel fuel from their production or import facilities is made available for use in any of the 110 Texas counties affected by the Texas Low Emission Diesel (TxLED) regulations. Download the necessary registration form here.
All diesel fuel producers and importers must register with the TCEQ by no later than 45 days after the first date that diesel fuel from their production or import facilities is made available for use in any of the 110 Texas counties affected by the Texas Low Emission Diesel (TxLED) regulations. Download the necessary registration form here.
TxLED Quarterly Reporting
All diesel producers and importers that have registered with the Texas Low Emission Diesel (TxLED) program are required to submit a TxLED quarterly report to the TCEQ no later than 45 days after the end of each calendar quarter. Download the necessary TxLED quarterly reporting forms here.
All diesel producers and importers that have registered with the Texas Low Emission Diesel (TxLED) program are required to submit a TxLED quarterly report to the TCEQ no later than 45 days after the end of each calendar quarter. Download the necessary TxLED quarterly reporting forms here.