How to validate Item Attribute in change order?

The Item in the application have 2 common attribute:
Initial Point of Manufacturer and Initial Point of Use.

The validation of the affected Item in Standard Change Order is required for the above two Item attributes with valid values (string values).

Initial Point of Manufacturer and Initial Point of Use are required to be filled in for NEW parts (first release) prior to SCO/NRU release

I tried to create the item rule set with Association Type as    Attribute group and Association Name    as REZICommonPartAttrs and created a rule such as :
(!isNull([Item].[Common Part Attributes].[Initial Point of Manufacture]))

But can't fetch this item rule in SCO for any entry or exit criteria.