Final answer:
The conditions of entitlement and not entitlement of BAH differential are determined by military and government policies.
Step-by-step explanation:
The conditions of entitlement and not entitlement of BAH (Basic Allowance for Housing) differential are determined by the policies of the military and government agencies.
Entitlement to BAH differential may be granted in certain circumstances, such as when a military member is assigned to a higher-cost housing area, but their dependents continue to live in a lower-cost area.
On the other hand, not being entitled to BAH differential means that a military member's dependents are living in the same high-cost area as the member, and therefore, there is no need for a differential payment.