NSF International announced that it has received the Silver Leadership in Energy and Environmental Design (LEED) Certification for its recent laboratory expansion. The LEED Green Building Rating System™ is the nationally-accepted benchmark for the design, construction and operation of high-performance green buildings. LEED provides building operators and owners with the tools they need to have an immediate and measurable impact on their buildings' performance. Some of these practices include sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.