A controlled change, start to finish.
Every update follows the same path and leaves the same evidence.
- v4 · CURRENT
The team follows v4.
The Cold-chain receiving SOP v4 is Current: the version everyone opens, protected from direct edits.
- PROPOSAL
A process owner proposes v5.
A new temperature threshold is drafted as a proposal. Operators keep reading v4.
- REVIEW
Quality reviews the change.
Reviewers see only the steps that changed, comment on the line, and approve or request changes.
- v5 · CURRENT
v5 is published and acknowledged.
v5 becomes Current with approver and date attached. v4 is kept, locked and dated.