c) provides that no removal of tissue, for the purpose of a transplant to an intended recipient, shall be allowed from the body of a person who is incapable, by reason of mental impairment, of agreeing to make a donation. Permitted donations by living persons Subject to section 6, any person may make a donation, to take effect forthwith, for the purpose of a transplant to the body of his relative of— (a) (b) any regenerative tissue from his body; any non-regenerative tissue from his body, where it is certified by 2 medical practitioners that the removal of the tissue is not likely to endanger his health. Permitted donations by deceased persons (1) (a) Any person may make a donation, effective after his death, of any tissue from his body for therapeutic purposes to an approved health institution, or for research purposes to a prescribed institution. (b) Where a person dies without having made a donation pursuant to paragraph (a) and without having expressed in writing a contrary intention to the Board during his lifetime— (i) (ii) his spouse; or if he leaves no spouse or his spouse is unable to do so because of mental impairment or because he is abroad, his child, or if he has more than one child, all his children jointly, acting through the legal administrator or guardian in the case of a minor child, may, subject to subsection (3), make a donation of any tissue from his body for therapeutic purposes to an approved health institution. (c) Where a minor dies, the person who lawfully exercises parental authority over him or, if there is more than one such person, those persons, if they so agree, may, subject to subsection (3), make a donation of any tissue from the body of the minor to an approved health institution for therapeutic purposes. (2) Where a person referred to in subsection (1) (a), (b) or (c) has not, in the donation, specified— 96