In the target Sakai site, select Rubrics from the Tool Menu.
Select the Revoke sharing icon.
To revoke sharing for a rubric, select the Revoke sharing icon (i.e., box with a left-pointing arrow).
Tip: Sharing can be revoked only for rubrics that have been shared from within the current site. If the rubric had another site of origin, instructors must go to that site to revoke sharing.
Note: Revoking a shared rubric has no effect on copies of that shared rubric being used within individual sites.