A. An adult may revoke a supported decisionmaking agreement at any time. A revocation shall be in the form of an authentic act, dated, and signed by the adult or the adult's guardian if the adult lacks capacity under Civil Code Article 1918, and a copy of the revocation shall be provided to each supporter.
B. A supporter may revoke a supported decisionmaking agreement at any time. A revocation shall be in the form of an authentic act, dated, and signed by the supporter, and a copy of the revocation shall be provided to the adult subject of the supported decisionmaking agreement, the adult's guardian, if applicable, and any other supporters.