• Home
• About TFS
• Contact us
• Client Login
• TFS Website

• Carbon Credit Global Markets
• European Green Markets
• United States Green Markets
• Australian Green Markets
• TFS Market Updates & News
• The Green Corner

• Overview
• Federal Markets — SO₂, NO_x and Mercury
• Renewable Energy Credits (RECs)
• US GHG Markets
• California RECLAIM Trading Credits (RTCs)
• Houston - Galveston Area (HGA) NO_x Allowances
• New York State NO_x and SO₂
• Emission Reduction Credits (ERCs) and Discrete Emissions Reduction Credits (DERCs)

Houston - Galveston Area (HGA) NO_x Allowances

Commencing on January 1, 2002, Houston-Galveston Area NO_x Trading Program was implemented by the Texas Natural Resources Conservation Commission (TNRCC) in order to bring ozone attainment to this eight county region which includes Harris, Galveston, Brazoria, Liberty, Montgomery, Fort Bend, Waller, and Chambers counties.