An overhaul of Northern Ireland's outdated adoption laws and reforms to health and social care have been stalled due to Stormont's collapse.
They are the latest Department of Health bills confirmed to be facing delays after it emerged the enacting of long-awaited legislation on organ donation has been stalled.
All three bills were passed by MLAs early last year but the making of necessary subordinate legislation cannot proceed without a power-sharing Executive or Assembly, health officials said.
