D.C. Code § 19-1703.11: Disposition of unappointed property under released or unexercised nongeneral power.

(a)

To the extent a powerholder releases, ineffectively exercises, or fails to exercise a nongeneral power of appointment:

(1)

The gift-in-default clause controls the disposition of the unappointed property; or

(2)

If there is no gift-in-default clause or to the extent the clause is ineffective, the unappointed property:

(A)

Passes to the permissible appointees if:

(i)

The permissible appointees are defined and limited; and

(ii)

The terms of the instrument creating the power do not manifest a contrary intent; or

(B)

If there is no taker under subparagraph (A) of this paragraph, passes under a reversionary interest to the donor or the donor's transferee or successor in interest.