What belongs in the witness record?
Illustrative example. A generator startup observation should reference the approved procedure, selected unit and actual result.
| Field | Check |
|---|---|
| Asset | Exact equipment ID |
| Procedure | Approved revision |
| Witness | Named role |
| Result | Observed value and evidence |
| Open issue | Deficiency reference |
Who controls the process?
The responsible commissioning professional approves test sequences, acceptance criteria and results. Only the registered engineer on the job performs engineering sign-off.
ASHRAE Standard 202 describes principal commissioning roles and documentation requirements.
Sources: ASHRAE: Commissioning resources and Standard 202-2024
Common questions
What else should the bid team know?
Is a witness point always a hold point?
No. The project ITP defines the difference.
Can a blank signature imply acceptance?
No. Record the actual disposition and owner.
Primary sources
- Commissioning resources and Standard 202-2024ASHRAE
- Commissioning Process for Federal FacilitiesUS Department of Energy
- Lessons Learned from Tier Certification of Constructed FacilitiesUptime Institute