| Sustainable Neighborhoods Contracts |  |  | Belgium | 1994 | 
              
                                                                                                        | Clean Cities |  |  | United States of America | 1993 | 
              
                                                                                                        | Environmentally Preferable Purchasing (EPP) |  |  | United States of America | 1993 | 
              
                                                                                                        | Natural Gas STAR |  |  | United States of America | 1993 | 
              
                                                                                                        | Building Energy Codes |  |  | United States of America | 1992 | 
              
                                                                                                        | ENERGY STAR - Certified New Homes |  |  | United States of America | 1992 | 
              
                                                                                                        | ENERGY STAR-labeled Products |  |  | United States of America | 1992 | 
              
                                                                                                        | The Energy Savings Trust |  |  | United Kingdom | 1992 | 
              
                                                                                                        | Utility Energy Service Contracts |  |  | United States of America | 1992 | 
              
                                                                                                        | Vehicle Technologies Program |  |  | United States of America | 1992 | 
              
                                                                                                        | Operation of Building Infrastructure Systems |  |  | Switzerland | 1992 | 
              
                                                                                                        | Federal Buildings Initiative |  |  | Canada | 1991 | 
              
                                                                                                        | Energy Use Rationalization Act |  |  | Republic of Korea | 1980 | 
              
                                                                                                        | Geothermal Technologies Program (GTP) |  |  | United States of America | 1977 | 
              
                                                                                                        | Industrial Assessment Centers (IACs) |  |  | United States of America | 1976 | 
              
                                                                                                        | Industrial Technologies Program: BestPractices |  |  | United States of America | 1970 |