Final answer:
It is imperative to send an Exhibit 1, DD214, or other appropriate documentation reflecting separation from service to NACIC in certain legal situations related to military service.
Step-by-step explanation:
An Exhibit 1, DD214, or other appropriate documentation reflecting the member's separation from service should be sent to NACIC when it is imperative to provide proof of the member's separation from service.
This may be required in various legal situations such as applying for veteran benefits, pension claims, or when dealing with legal matters related to military service.