(a) Notwithstanding section 22 of this article, a person who is 18 years of age or older and of sound mind, by entering into a preneed funeral contract, as defined in 47-14-2 of this code, may direct the location, manner and conditions of the disposition of the persons remains and the arrangements for funeral goods and services to be provided upon the persons death. The disposition directions and funeral prearrangements that are contained in a preneed funeral contract are not subject to cancellation or revision unless any resources set aside to fund the preneed funeral contract are insufficient under the terms of the preneed funeral contract to carry out the disposition directions and funeral prearrangements contained in the contract.
(b) As to any matter not addressed in a preneed funeral contract as described in subsection (a) of this section and except as provided in subsection (c) of this section, the right to control the disposition of the remains of a deceased person, the location, manner and conditions of disposition, and arrangements for funeral goods and services to be provided vests in the following, in the order named, provided that the person is 18 years or older and is of sound mind:
(1)(A) A person designated by the decedent as the person with the right to control the disposition in an affidavit executed in accordance with paragraph (B) of this subdivision; and
(B) A person who is 18 years of age or older and of sound mind wishing to authorize another person to control the disposition of his or her remains may execute an affidavit before a notary public in substantially the following form: