Personal Information Change approval approval not working as expected

Summary:

We have requirement that when pending worker changing any personal information it should be auto approved and if employee changing DOB and National Identifier should go for approval and other field changes done by employee should be auto approved. We have define this rule. Please suggest what modification required in this rule.

(((Current Person Biographical Information.result.Date Of Birth != null) AND (Current Person Biographical Information.result.Date Of Birth != Proposed Person Biographical Information.result.Date Of Birth) AND (Requestor's Assignment.userPersonType != "Pending Worker")) OR ((Current Person National IDs.result.National ID != null) AND (Current Person National IDs.result.National ID != Proposed Person National IDs.result.National ID) AND (Requestor's Assignment.userPersonType != "Pending Worker")))