C.R.S. § 15-2.5-307
15-2.5-307. Impermissible appointment
15-2.5-307. Impermissible appointment. (1) Except as otherwise provided in section 15-2.5-306, an exercise of a power of appointment in favor of an impermissible appointee is ineffective.
(2) An exercise of a power of appointment in favor of a permissible appointee is ineffective to the extent the appointment is a fraud on the power.