A supply chain governance calendar assigns each recurring review a frequency, owner and output: expiring exceptions weekly, metrics and new critical components monthly, supplier and risk register review quarterly, policy and charter review yearly. Put it in the shared calendar so reviews happen without anyone remembering.
Why a calendar
Governance fails quietly. Nobody decides to stop reviewing exceptions; the meeting just gets skipped twice. A calendar makes the rhythm visible. SSDF practice PO.1.2 includes periodic review of approved exceptions, and PO.1.1 gives an example of reviewing security requirements at least annually, or sooner after major changes or incidents. A calendar is how you honor those habits.
A sample rhythm
The frequencies below are a suggested starting point, not a standard.
| Cadence | Review | Owner | Output |
|---|---|---|---|
| Weekly | Exceptions expiring in the next two weeks; new advisories on critical components | Program lead | Renew, fix or remove list |
| Monthly | Four to six metrics; new critical components and suppliers; open escalations | Steering group | Decision log entries |
| Quarterly | Supplier criticality tiers; risk register; policy exceptions trends; tabletop or drill | Program lead and executive | Updated register, action list |
| Yearly | Charter, policy, standards, risk appetite, decision rights | Accountable executive | Re-approved documents |
| After an event | Incident, acquisition, major tooling change | Program lead | Targeted review |
What each review looks at
Weekly. Short and operational. Which exceptions end soon, and will the fix land? See what happens when a vulnerability exception expires.
Monthly. Trends, not snapshots. Are exceptions growing? Is coverage of the inventory rising? Keep the same definitions so months compare.
Quarterly. The wider picture. Has a component's role changed so its tier should? Has a supplier changed ownership or stopped maintaining something?
Yearly. Governance itself. Is the charter still true? Have decision rights stayed realistic? Did the policy get ignored anywhere?
Keep it light
- Put one named owner against each line.
- Use a standing template so prep takes minutes.
- Cancel reviews with nothing to decide, but record that they were cancelled.
- Drop a review that has produced no decisions for three cycles.
Try it yourself
Click through it at your own pace, or open it full screen. Notice that new information arrives between reviews, which is why the weekly check exists.
Safeguard's continuous scanning, policies and compliance evidence automation can feed these reviews with current data and keep the records that show they took place.
Quick check
Do small teams need all four cadences?
A combined monthly review plus a yearly policy check can be enough for a small team.
What if nothing changed?
Record that the review happened and nothing needed deciding. That is still evidence.
Sources
Last reviewed: 19 October 2026.
