GBI is the first publisher of an ANSI-approved American National Standard
for commercial green building certification.
Volunteer Service Length
The standards development process has busy and slow periods, but members should expect 1-3 virtual meetings a year for each working group they sit on. All meetings are currently held virtually via GoToWebinar. Membership lasts two years.
Apply Today
For more information on each standard and to submit a volunteer application, visit the Existing Buildings Standard, New Construction Standard, Core & Shell Draft Standard, and Sustainable Interiors Draft Standard pages.
Review the latest standards
Virgil Campaneria
Healthcare Principal at Gurri Matute
“If you truly believe in Sustainability and Resilience of the built environment, then get involved in setting the standards, and not just getting points. Volunteer and make a real difference.”
Jane Rohde
Principal at JSR Associates, Inc
“Volunteering with GBI is like having direct access to amazing resources and people every day! Highly recommend the experience.”

What is the American National Standards Institute?
ANSI is a U.S.-based organization that has served as administrator and coordinator of the U.S. private sector voluntary standardization system for more than 100 years. ANSI accreditation signifies that the procedures used by the GBI meet the Institute’s requirements for openness, balance, consensus and due process.

How did GBI become an ANSI Accredited Standards Developer?
The initial 2005 standards development process resulted in the ANSI/GBI 01-2010: Green Building Assessment Protocol for Commercial Buildings. The 2010 standard was updated and released in 2019, 2021 and again in 2024 as ANSI/GBI 01-2024: Assessment Protocol for Design, New Construction, and Major Renovations. GBI’s second standard, ANSI/GBI 02-2023, Assessment Protocol for Existing Buildings was published by ANSI in summer 2023 and revised again in 2025. GBI is currently in the process of developing two new green building standards, one on Core and Shell and one on Sustainable Interiors.
GBI’s Consensus Procedures for Continuous Maintenance
Standards Development Resources
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Standards Development