Absolute 50% CDs for Enhanced Commissioning?

Nicole,
This is actually a question for the EAc3 forum. There are no design document review requirements for the fundamental commissioning agent.
The requirement for LEED is that the Enhanced CxA conduct a commissioning design review of the "design documents prior to the mid-construction documents phase and back-check the review comments in the subsequent design submission." In my experience 75% CD is not too late to be considered a mid-CD review. There are times when project deliveries skip around and there is no 50% CD delivery, only a 75% CD delivery. This has not been an issue when we submit our documentation.

Nicole, we still have a few projects that were either out for pricing/bidding or way past the 50% that we are performing enhanced commissioning on, but the owner understands that the odds are that they will not get the points, but understand the value of the actions this brings to the project. We did our normal peer review, and some change orders were issued to address some of the comments.

This tends to be on projects where a client has not had LEED or Cx experience yet, so everything is new. These clients then tend to understand the process and we do not see the problem again. Again, expectation is everything. When the projects came up, we focused on the value of the service, not in any way assure them they would get the points. In fact, we really told them we would document the process but are very open to GBCI on the dates and activities, but they should not count on the points.

Enhanced activities bring value, it just becomes much harder the later in the process the peer or design review comes.