The US government says climate change measures will get the highest priority when it comes to technical assistance funding for the island territories and associated states.
The Office of Insular Affairs is accepting applications for 2016 technical assistance which will be processed on a first-come, first-serve basis until funds are exhausted.
Assistant Secretary Esther Kia'aina says the island communities continue to face extreme climate events, including typhoons and hurricanes, storm surges, high winds and king tides.
Ms Kia'aina says the areas are also feeling the effects of slow, progressive climate-induced stresses, such as sea level rise, ocean acidification, coral bleaching and saline intrusion into water systems.
Her office says the call for action is based on the adverse impacts, scientific evidence and urgent requests by island leaders.
Earlier this week China announced it would be setting up a fund worth US$3 billion to support developing countries to combat climate change.