N:
NBIC: National Ballast Information Clearinghouse - Data on the ballast water management practices of commercial ships that operate in the waters of the United States [Ad Hoc Organizations, Smithsonian Institution, Smithsonian Environmental Research Center; Department of Homeland Security, U.S. Coast Guard]

U:
United States Global Change Research Program - Coordinates and integrates federal research on changes in the global environment and their implications for society. [Multiple agencies involved]