The Far East District Central Resident Office's Quality Assurance Branch met with their contractors at Osan Air Base Oct. 17 and 18 to ensure three Far East District projects are Leadership in Energy and Environmental Design (LEED) Silver certifiable. The branch visits the project sites quarterly to ensure the contractor is properly implementing and documenting the LEED requirements. A LEED Silver certifiable building has energy efficient features, making a smaller carbon impact on the environment.