Utah Code Ann. § 75A-9-118
(1) If an individual has a long-term disability requiring routine treatment by artificial nutrition, hydration, or mechanical ventilation and a history of using the treatment without objection, an agent or default surrogate may not consent to withhold or withdraw the treatment unless:
(c) the individual has experienced a major reduction in health or functional ability from which the individual is not expected to recover, even with other appropriate treatment, and the individual has not:
(2) A default surrogate may not make a health care decision if, under other law of this state, the decision:
Enacted by Chapter 439, 2025 General Session