Teovõimetu või piiratud teovõimega isik võib olla doonor, kui:
1) siiratakse taastuvat kude;
2) puudub sobiv teovõimeline doonor;
3) retsipient on doonori õde või vend; ...
Exceptionally, and under the protective conditions prescribed by law, the removal of regenerative tissue from a person who does not have the capacity to consent may be authorised provided the following conditions are met: i. there is no compatible donor available who has the capacity to consent; ii. the recipient is a brother or sister of the donor; ...