The short answer
Defer preventive maintenance through a dated decision that identifies the asset and task, original due date, reason, current condition evidence, approving authority, interim monitoring or mitigation, replacement due date, cumulative deferrals, and cancellation triggers. A changed calendar date alone is not an approved deferral.
Operational checklist
Mark your progress, then save a working copy. Selections reset when you leave this page. A checked box is not an approval or evidence of completion.
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Key takeaways
Treat deferral as a bounded exception
Record the asset, location, task specification, governing schedule or manufacturer reference where applicable, original due date, last completion evidence, current condition, reason for delay, requested new date, decision owner, and evidence checked. This operational form does not determine safe intervals.
Tasks involving regulated equipment, life safety, warranties, or required inspections need the responsible qualified reviewer. A staffing or budget preference does not override applicable requirements.
Make time and cumulative exposure visible
The register should show both this deferral and prior deferrals. Repeated short extensions can create a long unreviewed interval if each decision sees only the latest date.
| Field | Purpose | Reopen or stop condition |
|---|---|---|
| Original schedule | Preserve expected cadence and last completion | Source requirement changes |
| Current evidence | Show condition at decision time | New symptom, alarm, inspection result |
| Interim control | Define monitoring or temporary measure | Control unavailable or fails |
| Replacement date | Create a bounded exception | Expiry reached |
| Cumulative history | Expose repeated deferral | Count/duration exceeds policy |
| Authority | Identify who accepted the exception | Scope or risk changes |
Close the deferral, then close the maintenance task
Completing the delayed task ends the deferral only when completion evidence is accepted and the next schedule is calculated from the approved policy. Cancellation, asset replacement, or scope change needs its own supported record.
Review whether interim monitoring found any changed condition and whether the deferral affected warranty, vendor, inventory, or other scheduled work. Do not delete expired deferrals from performance history.
Edge cases
Sources and references
Follow each source to check the underlying claim. Access checks and professional review are different steps.