Which category is designated for a child under 21 who is not in the member's custody?

The category designated for a child under 21 who is not in the member's custody is G. This classification is important as it indicates administrative and legal distinctions concerning the child’s eligibility for certain benefits or claims associated with the member. When a member does not have custody of their child, this classification helps the Navy and associated organizations understand the specific situation, ensuring appropriate guidelines are followed.

In the case of the other options, they pertain to different scenarios regarding child status or relationship. For instance, categories A, B, and C generally apply to dependent children who reside with their member parent or are financially dependent on them. Without custody, the designation shifts to G, allowing for proper handling of benefits and access to services aligned with non-custodial parental arrangements. Understanding these categories can help members navigate dependent coverage and ensure compliance with naval regulations.