What is a high-performance green building certification system?
Certification systems for high-performance green buildings (as defined at 42 U.S.C. 17061) assess occupant health, economic, and/or environmental aspects of buildings as a whole. They may include, but are broader than, consideration of specific products, materials, and ecolabels. Certification systems rate or reward relative levels of compliance or performance with specific goals and requirements. Certification systems require an integrated design approach to create projects that improve health and environmental performance, cost effectiveness, and energy efficiency throughout a building’s life-cycle. Some certification systems are single-attribute, focusing solely on one aspect of a building such as occupant health, while others are multi-attribute, addressing aspects such as toxicity, reliability, and overall performance in addition to cost-saving measures such as water and energy efficiency. While the philosophy and method vary across systems, they all award or certify projects designed to improve human health and the environment and reduce operational costs.
Benefits of using certification systems
A 2018 GSA study [PDF - 3 MB] found that GSA’s certified high-performance buildings cost less to operate, have more satisfied occupants, save energy and water, and produce less waste compared with typical buildings. Compared to legacy stock buildings, GSA’s high-performance buildings have:
- 23% lower building operating expenses
- 23% lower energy use
- 28% lower water use
- 9% less waste landfilled
- 2% higher overall tenant satisfaction
The study identified large savings opportunities from continuing to invest in high-performance buildings. If the 100 legacy stock buildings in the study met the average performance rates of the high-performance buildings, they could save over $44 million per year.
Federal agency requirements for use of high-performance green building certification systems
Section 433 of the Energy Independence and Security Act of 2007 (42 U.S.C. 6834) requires agencies to apply sustainable design principles to the siting, design, and construction of federal buildings. While agencies are not required to use certification systems, the use of third-party building rating systems has been shown to assist project teams in achieving and quantifying the benefits of incorporating sustainable design principles in the design and operation of federal buildings. Also, the National Technology Transfer and Advancement Act of 1995 encourages agencies to use technical standards developed by voluntary consensus standards like third party certification systems, rather than developing agency- or government-specific standards. The use of standards that are widely accepted and developed through consensus-based public-private partnerships enhances innovation and efficiency in government operations and procurement.
Should a federal agency use a third-party building certification system„ the certification system must meet certain criteria established by a federal regulation managed by the Department of Energy. This rule applies to new Federal buildings or a Federal building undergoing a major renovation that requires Congressional approval or for which the estimated design and construction costs are at least $2,500,000 (in 2007 dollars, adjusted for inflation), and design for construction began after Oct. 14, 2015.
Should a federal agency desire to use a certification system, the rule requires agencies to use certification systems that:
- Allow assessors and auditors to independently verify the criteria and measurement metrics of the system
- Are developed by a certification organization that provides an opportunity for public comment on the system and for development and revision of the system through a consensus-based process
- Are nationally recognized within the building industry
- Are subject to periodic evaluation and assessment of the environmental and energy benefits that result under the rating system
- Include a verification system for post-occupancy assessment of the rated buildings to demonstrate continued energy and water savings at least every four years after initial occupancy
Our review of green building certification systems
Section 436(h) of the Energy Independence and Security Act of 2007 (42 U.S.C. 17092) requires GSA to evaluate available third-party high-performance green building certification systems and provide the findings to the Secretary of Energy who, in consultation with the Department of Defense and GSA, formally identifies the system(s) to be used across the federal government (via a rule — referenced above). Four reviews have been completed: 2006, 2012, 2019, and 2024.
The White House Council on Environmental Quality separately maintains the Guiding Principles for Sustainable Federal Buildings, which consolidate statutory requirements for the design and operational performance of Federal buildings. GSA has developed two crosswalks showing how third-party certification systems help agencies meet the Guiding Principles:
- The GSA Health and Wellness Crosswalk highlights aspects of third-party rating systems that focus on occupant health and wellness. As President Trump’s Make America Healthy Again report makes clear, reducing exposure to environmental contaminants and encouraging more physical activity are key to improving the health of America’s children and parents, including Federal employees. Using this Crosswalk and relevant third-party rating systems can help agencies advance these critical goals as employees return to full-time office work.
- GSA’s broader Building Certification Crosswalk identifies specific credits or points within selected commercial building certification systems and standards that federal agencies should focus on in order to meet the Guiding Principles.
High-performance green building certification systems are routinely updated and revised to include new requirements and methodologies. GSA continuously reviews the certification system market and makes revisions to the crosswalks, where warranted.
Other types of certification systems
In addition to multi-attribute high-performance green building certification systems, there are several that are single attribute systems focusing on one particular issue such as energy or health. ENERGY STAR is one of the most well-known single-attribute building certification systems focused on energy consumption in buildings.
Health-focused
- Fitwel
Generated by expert analysis of 7,000+ academic research studies, Fitwel is implementing a vision for a healthier future where all buildings and communities are enhanced to strengthen health and well-being. - WELL Building Standard
Developed over 10 years and backed by the latest scientific research, WELL sets pathways for accomplishing health-first factors that help building occupants do their best work by supporting physical and mental health across 10 core concepts.
Net zero — energy, carbon, waste, water
- ENERGY STAR NextGen
ENERGY STAR NextGen-certified buildings are independently verified to be among the nation’s most energy-efficient, low-emissions commercial and multifamily buildings. It encourages U.S. building stock to move towards efficiency and reduced greenhouse gas intensity while leveraging renewable energy. - Green Globes Journey to Net Zero
GBI offers two net zero certification programs that are available to new buildings, existing buildings, interior spaces, and portfolios. The programs have stand-alone minimum requirements and do not require Green Globes Green Building pre-certification. New buildings may achieve a “Designed to Achieve” rating. Existing Buildings and Portfolios that meet all requirements achieve a Green Globes Net Zero Energy or Green Globes Net Zero Carbon certification. The programs are designed to support all building sizes and building types. - LEED Zero
Since 2019, LEED has offered four types of net zero ratings that are available to buildings that already have an existing LEED Building Design and Construction or Operations and Maintenance certification. - Zero Energy Certification and Zero Carbon Certification
The International Living Future Institute offers building certifications that require at least net zero emissions operation as well as building decarbonization. Compliance is determined through third-party audit.