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Regional Greenhouse Gas Initative


NEW! Delaware's Clean Power Plan  

Regulation 1147 establishes Delaware's portion of a multi-state Carbon Dioxide (CO2) cap-and trade program. The cap-and-trade program was developed by the Regional Greenhouse Gas Initiative, or RGGI, which is a cooperative effort among a number of Northeastern and Mid-Atlantic States. The RGGI Memorandum of Understanding (MOU) was originally signed by Connecticut, Delaware, Maine, New Hampshire, New Jersey, New York and Vermont and subsequently by Maryland, Massachusetts, and Rhode Island.

The purpose of RGGI is to reduce the emissions of CO2 from EGUs (electric generating units). CO2 is a greenhouse gas that contributes to global warming. 

Delaware CO2 Budget Trading Program - Regional Auction
To support the state CO2 Budget Trading Program, the RGGI participating states have implemented a regional auction platform to sell CO2 allowances.Read the Auction Notice for more information. Information can be found on the RGGI Executive Summary and the RGGI Web site

DELAWARE CO2 Allowance Submission Schedule for 2016 Regional CO2 Allowance Auctions

Final CO2 allowance auction dates and CO2 allowance quantities are published in the Auction Notice for each auction, available at:

 Projected Auction Date

 Auction Format

 Allocation Year

 Projected Quantity

Cost Containment Reserve 


 Sealed bid, uniform price





 Sealed bid, uniform price



 Remainder of 457,658


 Sealed bid, uniform price



 Remainder of 457,658


 Sealed bid, uniform price



 Remainder of 457,658

Total 2016 Allowances


If you have questions about the RGGI auction, information can be found at Auction FAQs.

Amendment to Regulation 1147 - 2012 Program Review Amendments 
As called for in the original RGGI Memorandum of Understanding, the participating states conducted a program review of the CO2 Budget Trading Programs. Proposed amendments to the program have been incorporated in an Updated Model Rule (released Feb. 7, 2013) that will guide Delaware as it follows its own statutory and/or regulatory procedures to propose updates to 7 DE Admin. Code 1147 - CO2 Budget Trading Program.

Path Forward
Delaware's schedule for adopting the 2012 RGGI Program Review amendments to Regulation 1147 was as follows:

            Discussion Draft Regulatory Language Available - May 14, 2013

For additional information, please contact Valerie Gray in Dover at (302) 739-9402, or at

Additional information on the RGGI program is available at the following websites:

Clean Fuel Standard
On January 5, 2009, Delaware and 10 other Northeast and Mid-Atlantic states announced their commitment to developing a regional Low Carbon Fuel Standard in order to reduce greenhouse gas emissions from fuels for vehicles and other uses. 

A Low Carbon Fuel Standard is a market-based, technologically neutral policy to address the carbon content of fuels by requiring reductions in the average lifecycle greenhouse gas per unit of useful energy. Such a standard is potentially applicable not only in transportation, but also for fuel used for heating buildings, for industrial processes, and for electricity generation.

Developing a low carbon fuel standard for application regionally is a logical next step in our strategic work with other states to reduce greenhouse gas emissions.

NOTE: This website will be updated as more information becomes available on the development of the standard.

Greenhouse Gas lnventory
The Greenhouse Gas (GHG) inventory reports present data and analyses on the six greenhouse gases listed in the Kyoto Protocol. The six GHGs include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6). The Division of Air Quality (DAQ) prepares the GHG inventory to characterize Delaware's historical, as well as, projected GHG emissions, and thereby inform the policy option development process.  The reports provide information on the activities that caused emissions and removals, as well as background information on the methods used to estimate the emissions. The GHG inventory has four key objectives:

  • Identify and characterize GHG emissions sources and sinks,
  • Quantify GHG emissions and removal from sources and sinks,
  • Document the emission inventory data and analytical results, and
  • Document the GHG  inventory data sources.

2008 GHG Inventory Report
2008 GHG Inventory Executive Summary
2010 GHG Inventory
2010 GHG Inventory Executive Summary 

Contact Information:

Valerie Gray
(302) 739-9402

Revised: 5/010/16

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