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Substantial Completion Is Not the Finish Line: Closing the Commissioning Gap

May 20, 2026 · 2 min read

Substantial completion is a contractual moment, not an operational one. The mechanical rooms can be finished, the keys can be handed over, and the ribbon can be cut, and the asset can still fail to perform — because the systems were not commissioned end to end, because the operators were trained on the wrong equipment, or because the as-built drawings live on a designer's hard drive instead of in the Nation's records.

Commissioning and handover are where capital projects either set up an asset for a 30-year life or condemn it to a five-year fight with warranty claims, deferred maintenance and operator turnover.

Recent context

Federal protocols for water and wastewater systems in First Nations communities now explicitly require commissioning against a written plan before service, and the federal delivery push behind the renewed Urban, Rural and Northern Indigenous Housing Strategy is putting more new assets into Indigenous hands that will need disciplined handover.

The governance and PM angle

Treat commissioning as a separately-scoped, separately-budgeted phase, not an afterthought tucked into construction. That means a commissioning plan signed off at design stage, a defined list of systems and tests, an operator training plan, and a handover package — drawings, manuals, warranties, contacts — that is delivered as a deliverable, not as a courtesy.

How XNM helps

XNM works with Nations to define the commissioning and handover scope before construction begins, write it into the contract, and then track it as its own workstream right through the final acceptance milestone. We help ensure the operations team is engaged from the start and that the handover package will actually be usable on day one.

Practical takeaways

  1. Plan commissioning at design. The commissioning plan should be a design deliverable, not a construction memo.

  2. Budget for it separately. Carry commissioning, training and handover as their own line items, not buried in general conditions.

  3. Engage operators early. The people who will run the asset should be in the room during testing.

  4. Define a handover package. List the drawings, manuals, warranties and contacts that must be transferred.

  5. Set a final acceptance milestone. It should be distinct from substantial completion and tied to performance, not just paperwork.

FAQ

Who pays for commissioning?

The capital project does. Treating it as an operating cost is a common error that under-funds the activity and weakens the handover.

What if our operators are not yet hired?

Build the recruitment and training into the project schedule so that staffing readiness aligns with system readiness. Otherwise the asset arrives without anyone to run it.

The bottom line

A ribbon-cutting is a milestone, not a finish line. Invest in commissioning and handover and the asset starts its life ready to perform. Skip it, and the project keeps showing up on the operations budget for years.