BBC NEWS | Jane Dreaper
Bereaved families have blocked the donation of organs from 547 UK registered donors since 2010 - about one in seven cases, figures show.
NHS Blood and Transplant (NHSBT) says it will no longer seek the consent of families formally, to make such "overrides" more exceptional.
Instead, they will be given a leaflet explaining consent - or authorisation in Scotland - rests with the deceased.
Families can still veto that consent but must provide reasons in writing.
NHSBT expects the change to lead to a 9% rise in donors.
It said the 547 blocked donors would have provided organs for 1,200 of the 6,578 patients currently waiting for transplants.
The consequence of refusal is that people die as a result - that is the unfortunate reality of the situation
James Hardie, St Mary's Hospital nurse
"The consequence of refusal is that people die as a result - that is the unfortunate reality of the situation". James Hardie, St Mary's Hospital nurse
Last month, the system in Wales changed to "presumed consent", under which people are deemed to be potential donors unless they have specifically opted out. Continue reading