The Green Building Certification Institute (GBCI) announced that three of its LEED Professional Credentials have earned accreditation under the American National Standards Institute's (ANSI) Accreditation Program for Personnel Certification Bodies.

"More than 170,000 professionals have proven their commitment to green building through LEED accreditation," said Beth Holst, vp credentialing at GBCI. "ANSI accreditation validates the integrity of our processes under an international standard."

With the announcement, the LEED AP Building Design + Construction, LEED AP Interior Design + Construction and LEED AP Neighborhood Development credentials join LEED AP Operations + Maintenance, LEED AP Homes and LEED Green Associate in this prestigious category. The latter LEED Professional Credentials earned ANSI accreditation in March 2011.

"ANSI commends GBCI for demonstrating their commitment to the continual improvement of their credentialing programs," said Dr. Roy Swift, ANSI senior director of personnel credentialing accreditation programs. "This achievement marks the culmination of a multi-month effort to demonstrate compliance to a rigorous internationally recognized accreditation process. Accreditation by ANSI creates a valuable distinction for GBCI's credentialing programs that extends through the service network - from certification body, to certification holder, to employer, to the public they serve."