It is recommended that the CxA is contracted according to a two phase fee
negotiation process. The first phase includes Design Stage responsibilities and
the second phase includes Construction and Post-Construction activities. This
two phase process allows for the negotiation of the initial fee to be based on known
general factors, and negotiation of the Construction and Post-Construction Stage
fee based upon a substantially completed design and the actual type and number
of equipment, systems and assemblies to be inspected, started and tested.
Within the Design Stage proposal, the CxA shall be asked to provide budgetary
A/E & CM Scope of Services
numbers for the Construction and Post-Construction Stages.
Retain Commissioning Agent
Review Owner's Project Requirements & Basis of Design
Review Owner's Project
Requirements & Basis of
As described in previous sections, the Owner's Project Requirements are
developed as part of GSA's project planning processes and establish baseline
Concept, DD and CD Design
criteria for facility function, performance and maintainability. The Basis of
Design (BOD) is developed by the A/E early in the Design Stage based on Owner's
Project Requirements. It is the primary document that translates GSA's and the
Customer Agency's needs into building components such as HVAC systems,
building envelope, security systems, building automation system, etc. The BOD
describes the technical approach planned for the project as well as the design
Contact Documents Aligned
with Owner's Project
parameters to be used. The BOD is typically developed by the A/E and done in
technical terms, whereas the Owner's Project Requirements are developed by
GSA in concert with the Customer Agency and expressed in layman's terms.
GSA PM Lead
When the Commissioning Agent is brought on board early in the design
development phase, one of their first tasks is to review the Owner's Project
Requirements and the Basis of Design (BOD). The purpose of these reviews is
to assure that the Customer Agency's needs are met as described in the Owner's
Project Requirements, and carried through in the Basis of Design Document.
The CxA's review ensures clarity and completeness with an eye toward commis-
sioning process activities (benchmarks, standards, performance targets, etc.).
The CxA may recommend changes to improve energy efficiency, operation &