The 2006 SO2 Allowance Auction took place on March 27, 2006. Allowances were auctioned that could first be used in 2006 as well as in 2013. Details are provided via the links below.
- Overview of how auctions work
- Results: summary of total bids, winning bids, and prices
- Bids for the Spot Auction (Allowances first usable in 2006)
- Bids for the 7 Year Advance Auction (Allowances first usable in 2013)