Many federal projects are design/build (DB) where the DB firm hires the Commissioning Authority (CxA).

We received a comment that we need to include system single-line diagrams in our systems manual. Can anyone clarify what the GBCI wants?

I need to know if the two signatories on the EA CREDIT 3: ENHANCED COMMISSIONING - LEEDOnline form are to be signed by the CxA, or by the owner?

Our MEP sub-contractor need to clarify if we can use an smoke capsule for duct leakage test? prior to air leakage test since the project specs is giving a small allowable 1% from basis of design?

We are pursuing LEED Certification for a 476921.20 sq ft Mixed Use Office Building in Egypt.

I was trying to do some catching up, and the July Addenda has a very significant change to who can be the CxA.

Our project is pursuing EAc3 - Enhanced Commissioning. The reference manual states that the CxA performing the enhanced commissioning must also perform the fundamental commissioning.

Hi Scott, We are involved with a major addition to an existing building. We will be certifying the entire building.

My question is in regard to both EAc3: Enhanced Commissioning and EAc5: Measurement and Verification credits in relation to a District Energy System.

The LEED NC multiple building project we are working on has been occupied for 6-18 months (depending on the building) and we have everything ready to submit everything for the construction review e