General
DM
Deputy Minister
In plain English
The most senior public servant in a department — the head of the organization, accountable to the minister.
Where you’ll see it
Standard usage across departments.
Example
“This requires DM sign-off.”
The head of the department has to approve it personally.
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Important
GC Simplified is an independent tool, not affiliated with or endorsed by the Government of Canada, and it does not provide official advice. Plain language is an interpretation, and interpretations can be wrong. Always verify against the source and your organization’s own guidance before acting.