The fifth public comment period for changes proposed to the LEED rating system will open on Oct. 2. Comments will be accepted until Dec. 2.

In June, the U.S. Green Building Council (USGBC) delayed the ballot vote on the updated rating system, formerly known as LEED 2012, to June 1, 2013, in response to public calls for more feedback. The system update was renamed LEED v4 and the delayed ballot vote and addition of a fifth public comment period was applauded by industry groups.

Summaries of the proposed changes to each system can be found here:
Building Design and Construction 
Existing Buildings: Operations & Maintenance 
Interior Design & Construction
Neighborhood Development

More information on the deadlines for comments and the proposed changes are online at