The Green Building Certification Institute, Washington, D.C., has launched a credentialing maintenance program for LEED APs and Green Associates, ensuring that LEED professional credentials will remain relevant and meaningful in the marketplace. “More than 130,000 LEED APs obtained their credentials between 2001 and June 2009. CMP will ensure that those credential holders who tested under previous versions of LEED for New Construction, LEED for Commercial Interiors, or LEED for Existing Buildings continue to demonstrate a level of knowledge that places them at the forefront of a constantly evolving green-building marketplace,” says Beth Holst, vice president of credentialing for GBCI. A number of activities qualify to earn LEED credential holders credit toward their credentialing maintenance, including continuing education as well as the practical application of LEED on projects and active participation in the green-building community. A CMP Guide is available at It outlines CMP-eligible activities and the requirements for maintaining both the LEED AP and LEED Green Associate credentials.