D.C. Code § 19-2112
Application to cotrustee.
The terms of a trust may relieve a cotrustee from duty and liability with respect to another cotrustee's exercise or nonexercise of a power of the other cotrustee to the same extent that in a directed trust a directed trustee is relieved from duty and liability with respect to a trust director's power of direction under §§ 19-2109 through 19-2111 .