Group Life Supplement – the AD&D benefit is included as part of a group life insurance contract, and the benefit amount is usually the same as that of the group life benefit. Voluntary – the AD&D benefit is offered to members of a group. An example is an AD&D policy provided in an initial nominal amount with premiums paid by another party (such as a small $1,000 AD&D policy offered to credit union members, with the premium paid for by the credit union itself), with higher elective benefits offered to members where the member must pay the additional premiums separately.