53-21-1324. Revocation. (1) The principal may revoke a directive in whole or in part orally or in writing at any time unless the directive provides that:
(a) the directive is not revocable during a period of incapacity; or
(b) the directive is not revocable for a specified period of time after a determination of incapacity.
(2) As allowed by the terms of the directive, the principal may:
(a) revoke the designation of an agent only by a signed writing or by personally informing the supervising health care provider; and
(b) revoke other parts of a directive other than the designation of an agent at any time and in any manner that communicates an intent to revoke.
(3) A health care provider, agent, guardian, or conservator who is informed of a revocation shall promptly communicate the fact of the revocation to the supervising health care provider and to any health care institution where the patient is receiving care.
(4) A decree of annulment, divorce, dissolution of marriage, or legal separation revokes a previous designation of a spouse as agent unless otherwise specified in the directive or in a durable power of attorney.
(5) A directive revokes all prior directives unless the newest directive instructs otherwise.