(1) An individual may refuse to make an anatomical gift of his or her body or body part by any of the following means:

    (a) A record signed by either of the following:

    (i) The individual.

    (ii) Subject to subsection (2), another individual acting at the direction of the individual if the individual is physically unable to sign.

    (b) The individual's will, whether or not the will is admitted to probate or invalidated after his or her death.

    (c) Any form of communication made by the individual during his or her terminal illness or injury addressed to at least 2 adults, at least 1 of whom is a disinterested witness.

    (2) A record signed pursuant to subsection (1)(a)(ii) shall meet all of the following requirements:

    (a) Be witnessed by at least 2 adults, at least 1 of whom is a disinterested witness, who have signed at the request of the individual.

    (b) State that it has been signed and witnessed as provided in subdivision (a).

    (3) An individual who has made a refusal may amend or revoke the refusal by any of the following means:

    (a) In the manner provided in subsection (1) for making a refusal.

    (b) By subsequently making an anatomical gift pursuant to section 10105 that is inconsistent with the refusal.

    (c) By destroying or canceling the record evidencing the refusal, or the portion of the record used to make the refusal, with the intent to revoke the refusal.

    (4) Except as otherwise provided in section 10108(8), in the absence of an express, contrary indication by the individual set forth in the refusal, an individual's unrevoked refusal to make an anatomical gift of his or her body or body part bars all other persons from making an anatomical gift of the individual's body or body part.