Air Permitting for Deepwater Port Act Projects in the South Central Region

EPA Region 6 is a cooperating agency in the licensing and environmental review process for Deepwater Port (DWP) projects located in federal waters off the state seaward boundaries of Louisiana and Texas. For the licensing process conducted in accordance with the Deepwater Port Act of 1974 (DPA), as amended, please see the Maritime Administration (MARAD) website for more information. EPA Region 6 is responsible for the issuance of air permits for offshore projects located in federal waters based on the CAA and the air regulations that would otherwise be applicable to the nearest adjacent coastal state, as long as the state or local requirements are applicable and not inconsistent with federal law and the DPA. Under the DPA, projects locating beyond 9 nautical miles from the Texas shoreline or 3 nautical miles from the Louisiana shoreline will need an EPA Region 6 issued CAA preconstruction and operating permit.

EPA recommends that potential applicants contact or meet with EPA to determine what requirements apply and to discuss what should be included in an EPA permit application. Please contact the EPA Air Permits Section Supervisor at Senghani.Dinesh@epa.gov for more information on the DWP permitting projects currently being processed by EPA Region 6.

Projects Currently Active in EPA Region 6

SPOT Terminal Services LLC, SPOT Deepwater Port (DWP): The proposed crude oil export DWP will be located 35 miles off the coast of Brazoria County, Texas. The CAA permits issued by EPA Region 6 on August 30, 2023, include both a Prevention of Significant Deterioration (PSD) pre-construction permit and a title V (TV) operating permit.  See Docket EPA-R06-OAR-2019-0576 at www.regulations.gov for full details.

On December 17, 2024, EPA Region 6 issued an extension for commencement of construction for PSD Permit R6PSD-DWP-GM7 to August 28, 2026.  Commencement of Construction Extension Request Response for SPOT PSD Permit R6PSD-DWP-GM7 (pdf) (261.9 KB, December 17, 2024)

Texas GulfLink (TGL) DWP:  The proposed crude oil export DWP will be located 26.6 nautical miles offshore of Freeport, Texas. The CAA permit issued by EPA Region 6 on September 11, 2025, is a single combined synthetic minor new source review (NSR) preconstruction and Part 71 title V operating permit. See Docket EPA-R06-OAR-2021-0413 at www.regulations.gov for full details. 

Bluewater Texas Terminals, LLC (BWTX) DWP:  The proposed crude oil export DWP will be located approximately 18 miles offshore of Port Aransas, Texas. EPA provided Public Notice on June 25, 2025, for the proposed CAA permit for this DWP facility. To view the Administration Record for the draft synthetic minor NSR permit, please visit the regulations.gov webpage Docket ID EPA-R06-OAR-2025-0311 for full details.

Blue Marlin Offshore Port (BMOP) DWP:  PSD and TV permit applications are in-house and being processed; the proposed crude oil export DWP will be located 82 statute miles off the coast of Cameron Parish, Louisiana. 

New Fortress Energy Louisiana FLNG, LLC (NFE LNG) DWP: PSD and TV permit applications are in house and being processed; the proposed  Liquified Natural Gas (LNG) export DWP will be located approximately 16 nautical miles off the southeast coast of Grand Isle, Louisiana.

Delfin LNG, LLC (Delfin LNG) DWP: PSD and TV permit applications are in house and being processed; the proposed Floating Liquified Natural Gas (FLNG) export DWP will be located approximately 41 nautical miles off the coast of Cameron Parish, Louisiana.

ST LNG, LLC (ST LNG) DWP: PSD and TV permit applications are in house and being processed; the proposed Liquified Natural Gas (LNG) export DWP will be located approximately 10 nautical miles off the coast of Matagorda, Texas.

Additional Guidance References:

• EPA’s Liquefied Natural Gas Regulatory Roadmap
• EPA New Source Review (NSR) Permitting
• EPA Operating Permits Issued under Title V of the Clean Air Act
• EPA CAA Permitting Tools & Related Resources
• MARAD’s Deepwater Port Licensing for LNG and Oil Import and Export