f7081c54___Publications___NCEE___US_EPA__Explanation_of_Allocation
[Type of Allowance] Opt-in allowances [Number of Allowance] 95,882 [Explanation of Allocation] 
Provided to units that enter the program voluntarily
3.2.3. Acid Rain Allowance Trading - Savings from Using Economic Incentives: By Table of Contents | Browsable Reports | Publications | NCEE | US EPA
Explanation of Allocation