The June 2009 auction will be the second held since compliance obligations under the 10-state RGGI CO2 Budget Trading Programs took effect on January 1, 2009 and the second to offer allowances from current (2009 to 2011) and future (2012 to 2014) control periods. States will offer for sale 30,887,620 million current control period allowances (all for the 2009 vintage) and 2,172,540 million allowances for the future control period (all for the 2012 vintage).

Given the early stage of the RGGI CO2 allowance market, the Participating States (Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island and Vermont) will continue to use a reserve price of $1.86 for all allowances. Before CO2 allowance auction 5, the Participating States will consider whether there is enough data available to justify the calculation of a current market reserve price.

As summarized in the auction notice, potential bidders must complete the qualification process to participate in the June CO2 allowance auction.