Overseas aid agencies say a New Zealand Government overhaul of the way they are funded could lead to two-thirds of them closing.
New Zealand Aid officials have released more details about a funding system for the sector to speed up humanitarian relief and focus on economic development in the Pacific.
The papers show officials will be concentrating on a smaller number of organisations for humanitarian responses.
The executive director of the Council for International Development, David Culverhouse, says of the 74 aid agencies operating now, 50 could fall away entirely.
He says there are still many unanswered questions about the effect of the proposals.