1. Energy Information Administration. Renewable Energy Consumption and Electricity Preliminary 2006 Statistics.www.eia.doe.gov/cneaf/solar.renewables/page/prelim_trends/rea_prereport.html(accessed Aug 26, 2008).
2. Energy Information Administration. Annual Energy Review 2006.www.eia.doe.gov/emeu/aer/elect.html(accessed Aug 26, 2008).
3. Federal plan requirements for municipal solid waste landfills that commenced construction prior to May 30, 1991 and have not been modified or reconstructed since May 30, 1991; final rule.Fed. Regist.1999,64(215).
4. Standards of performance for new stationary sources and emission guidelines for existing sources: Large municipal waste combustors; final rule.Fed. Regist.2006,71(90).