Hi.  We’re working on a LEED EBOM 4.1 project, and I’m trying to understand whether the performance period rules are different for LEED 4.1 than for 4.0.  We took a first pass through the credits, and the time periods that we gathered for the different credits were as follows:

  • Once / year
  • Monthly for one year
  • One Month
  • One time
  • Annual audit
  • Measurements taken within 5 years of project submission

So, I gather that the durations in this blog—the 3 to 24 month performance period and the 30-day overlap for the ending of performance periods—are just for EBOM 4.0 (i.e., they don’t apply to EBOM 4.1).  Is that correct?

—Tyrone