The U.S. Green Building Council (USGBC) announced it will allow LEED users to register projects under the LEED 2009 rating system until October. 31, 2016. The original date for LEED 2009 registration to close was June 15, 2015.

According to USGBC, the extension gives LEED users and members of the green building industry additional time to prepare for LEED v4, which features increased rigor and multiple updates.

“When USGBC launched LEED v4 last year, we set out with one goal in mind – to raise the bar in a way that challenges the building industry to reach higher than ever before. This is our nature and USGBC and its members’ collective mission,” says Rick Fedrizzi, CEO and founding chair of USGBC. “However, the market has requested additional time to prepare for LEED v4, so we are responding.”

According to USGBC, an a survey conducted at last week’s Greenbuild conference, 61 percent of respondents said they are “not ready” or “unsure” if they are ready to pursue LEED v4 and require additional time to prepare. Extending LEED 2009’s availability enables USGBC to work with the broader industry within a longer time frame to drive meaningful and comprehensive change.

“Our international LEED users, which account for some 50 percent of new LEED registrations, have also indicated they would like to have more time to move onto the new rating system,” says Fedrizzi.  “This extension will be especially helpful to them.”