(a) A donor may make an anatomical gift:

1. (1) by authorizing a statement or symbol indicating that the donor has made an anatomical gift to be imprinted on the donor's driver's license or identification card;
2. (2) by a will;
3. (3) during a terminal illness or injury of the donor, by any form of communication addressed to at least 2 adults, at least 1 of whom shall be a disinterested witness; or
4. (4) as provided in subsection (b).

(b) A donor or other individual authorized to make an anatomical gift under section 4 may make a gift by a donor card or other record signed by the donor or other individual making the gift or by authorizing a statement or symbol indicating that the donor has made an anatomical gift to be included on a donor registry. If the donor or other individual is physically unable to sign a record, the record may be signed by another individual at the direction of the donor or other individual and such record shall:

1. (1) be witnessed by at least 2 adults, at least 1 of whom shall be a disinterested witness, who have signed at the request of the donor or other individual; and
2. (2) state that it has been signed and witnessed as provided in clause (1).