(a) A person may provide directions for the disposition of the person's remains by placing the directions in a disposition document. The directions may include or be limited to designating an agent to control the disposition of the person's remains.
(b) A disposition document must be signed by the person and acknowledged before a notary public, and contain the form and contents required by AS 13.75.030. A disposition document may be a separate document or it may be contained in another document, including a will or prepaid funeral or burial contract. The disposition document may be modified or revoked only by a subsequent disposition document that complies with this subsection.