Utah Code § 75-5-707: Termination.

Unless otherwise provided in the supported decision-making agreement, a supported decision-making agreement is terminated upon the occurrence of any of the following:

(1) the death of the principal;

(2) revocation by the principal pursuant to Section 75-5-706;

(3) as to a specific supporter, if the supporter is no longer qualified by reason of failure to meet the requirements described in Subsection 75-5-701(14);

(4) withdrawal by all of the supporters pursuant to Section 75-5-706 without the designation of a successor supporter;

(5) the principal's execution of a valid power of attorney, healthcare directive, or declaration for mental health treatment, except to the extent the executed document expressly continues, in whole or in part, the supported decision-making agreement; or

(6) a court's:

(a) determination that the principal does not have capacity to execute or consent to a supported decision-making agreement; or

(b) appointment of a temporary or permanent guardian or conservator, unless the court's order of appointment:

(i) modifies but continues the supported decision-making agreement; and

(ii) limits the powers and duties of the guardian.