The five largest parties at Stormont have written to the Northern Ireland Secretary urging him to intervene to process a new organ donation law.
The opt-out system was passed by MLAs at Stormont last year but the enacting of the legislation has been delayed due to the political stalemate.
It was to be named Daithi's Law after six-year-old Daithi MacGabhann, from Belfast, who is on the organ transplant waiting list and whose family have campaigned for the new legislation.