| Alternative Motor Vehicle Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | Clean Coal Facility Tax Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | Credit for holders of Clean Renewable Energy Bonds (CREBs) |  |  | United States of America | 2006 | 
              
                                                                                                        | Credit for production from advanced nuclear power facilities |  |  | United States of America | 2006 | 
              
                                                                                                        | Deduction for certain energy efficient commercial building property |  |  | United States of America | 2006 | 
              
                                                                                                        | Energy Taxes: Coal, Biodiesel, Natural Gas |  |  | Germany | 2006 | 
              
                                                                                                        | Energy-Efficient Commercial Buildings Tax Deduction |  |  | United States of America | 2006 | 
              
                                                                                                        | Fuel Cell Motor Vehicle Tax Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | Law 26,093 on Regime of Regulation and Promotion of the Production and Sustainable Use of Biofuels |  |  | Argentina | 2006 | 
              
                                                                                                        | Law 26,123 on Promotion of Hydrogen Energy |  |  | Argentina | 2006 | 
              
                                                                                                        | Maryland Clean Energy Production Tax Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | New Qualified Hybrid Motor Vehicle Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | New energy efficient home credit |  |  | United States of America | 2006 | 
              
                                                                                                        | Public Transit Capital Trust |  |  | Canada | 2006 | 
              
                                                                                                        | Renewable Energy Act (Legislative) |  |  | China | 2006 | 
              
                                                                                                        | Renewable Energy Law |  |  | China | 2006 | 
              
                                                                                                        | Residential Energy efficiency Tax Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | Residential Renewable Energy Tax Credit |  |  | United States of America | 2006 | 
              
                                                                                                        | Tax exemption for biofuels (in relation to Directive 2003/30/EC) |  |  | Germany | 2006 | 
              
                                                                                                        | Vehicle excise tax rates |  |  | China | 2006 |