Compliance Criteria is normally created beforehand by your System Admin, therefore, should already by available for you to add to an Agreement.
If the Compliance Criteria you are looking for isn't available, contact your System Admin, as security rules control who can create new Compliance Criteria.
Click Agreements > Search for the Agreement > Click the Name
Click the Compliance tab > Click Add Existing Compliance
Search for the Compliance record(s) > Click the Name(s) > Click Add
The Compliance Criteria selected has now been added to the Agreement. The Agreement can then be added/synced to any Placement.
Click Save or Save & Close