Determine OBD Commercial to Commercial

The policies has two different Subscribers, the member is a Dependent Child on both plans and it is a non intact family. You are not able to make member contact but can confirm that one Subscriber is the members biological mom and the other Subscriber is the members step dad. What is the primacy reason used to determine the correct order of benefits?

If the member is a Dependent Child on one policy, a Spouse on the other policy and the effective dates are not the same on both plans, what is the primacy rule used to determine the correct order of benefits?

The policies have the same subscriber, the OI is through a different group than UHG and both policies are through active employment, if the effective date is the same on both plans what is primacy reason used to determine the corect order of benefits?

The member is a Dependent Child on both plans who is under 18 and it is a non intact family. You have spoken with the Subscriber on our plan and confirmed that there is a Court Decree for the child. The Court Decree does not state that neither one or both parents are to cover the child, but it does award joint physical custody. If both plan languages contain the custodial parent rule, what is the primacy reason used to determine the correct order of benefits?

The member is a Dependent Child on both plans who is over 18 and it is a non intact family. You have confirmed with the Subscriber on our plan that he is the members step dad. Step dad stated that the biological dad has active coverage for the member with BCSB but his wife (who is the biological mom) does not have her own insurance coverage and is only covered on his UHG plan. He also stated that a Court Decree exist and stating that she is to cover the child. What is the primacy reason used to determine the correct order of benefits?

BONUS QUESTION: For the scenario in the previous question #5 whose policy is primary?