Asset tagging gives each maintainable asset a unique identifier, the tag, used everywhere: on a physical label, in the model, in the schedules and in the maintenance system. When a technician stands in front of a pump, the label should lead straight to that pump's record, history and documents. When the tag is missing or different in each system, every maintenance job starts with detective work.
At a glance
| Who sets the rule | The owner or operator (in the AIR), so tags match their existing register |
| Who applies it | Designers (provisional tags), installers (final tags, labels), the information manager (checks) |
| Typical parts | Site or building, system or asset type code, location (level or zone), sequence number |
| Physical labels | Engraved plates, stickers, QR codes, barcodes, NFC or RFID tags |
| Not the same as | The model's GUID (a technical ID nobody reads) or the product's serial number |
Three identifiers, three jobs
| Identifier | Example | Who uses it |
|---|---|---|
| Asset tag | B02-AHU-L03-002 | People: technicians, helpdesk, labels, drawings |
| GUID (IFC GlobalId) | 3cUkl32yn9qRSPvBJVyWYp | Software: links the model element across exports |
| Serial number | SN 2026-118-4471 | Manufacturer: warranty, recalls, spare parts |
All three belong in the asset data; only the tag goes on the label.
A good tag rule
- Readable: a technician can guess roughly what and where from the tag.
- Stable: it doesn't change when a room is renamed or a department moves.
- Unique across the estate, not just the project.
- Matched to the owner's codes: use their asset type list, not a new one.
- Short enough to engrave and type on a phone.
Example rule: [Building]-[Asset type]-[Level]-[Number], with a fixed list of asset type codes (AHU, FCU, PMP, FD for fire damper…) and three-digit numbers per building and type.
Worked example
On a hospital project, designers give provisional tags in the model at technical design. The mechanical contractor installs 140 fire dampers, applies QR labels, and updates the model with final tags and serial numbers. The information manager runs a check: 6 dampers in the model have no label photo, and 2 labels carry the same tag. Fixed before handover, it means the first annual damper inspection finds every damper; on the previous hospital, it took the maintenance team six weeks to find them all.
Common mistakes
- Using the room number as part of the tag, then renumbering the rooms.
- Tags in the model that never get onto physical labels.
- A new tagging scheme for each project, so the estate has five formats.
- Tagging everything, including items nobody maintains.
Where to read more
Owners' asset management standards and CAFM vendors' import guides describe tag formats. ISO 19650-3 and the owner's AIR set the requirement; BS 8536:2022 covers the operator's involvement in setting it.