Mechanical packages increasingly carry commissioning and testing, adjusting, and balancing requirements, and a subcontractor that does not read the Cx and TAB scope underprices work that runs through closeout.
What commissioning and TAB require
Commissioning is the process of verifying that building systems perform as designed, and testing, adjusting, and balancing sets the airflow and water flow on mechanical systems. A mechanical package references the commissioning specifications and the TAB standards to set the contractor's role, the documentation, and the functional testing it must support. These requirements run from installation through closeout and carry labor and coordination cost.
Why the scope is easy to miss
The commissioning and TAB requirements, the contractor's documentation, and the functional testing sit in the specifications, often in Division 01 and Division 23, not the title. A sub that overlooks the commissioning and TAB scope underprices the testing, the documentation, and the coordination through closeout.
How an AI bid agent flags commissioning and TAB
An AI bid agent reads each mechanical package, flags the commissioning and TAB requirements, and surfaces the contractor's role, the documentation, and the functional testing that drive the work through closeout. The sub prices the actual commissioning and TAB burden.
You can see how the agent reads a mechanical package in our AI bid agent demo for MEP subcontractors. It flags the commissioning and TAB scope through closeout so it is priced and not missed.