| NA4-HYW |
National
Association of 4-H Youth Agents |
| NAAEE |
North American
Association for Environmental Education |
| NACAA |
National
Association of County Agricultural Agents |
|
NACAC |
National
Agricultural Compliance Assistance Center |
| NACCHO |
National
Association of County & City Health Officials |
| NACD |
National
Association of Conservation Districts |
| NACo |
National
Association of Counties |
| NADRA |
National
Agricultural Pesticide Risk Analysis |
|
NAERG |
North American
Emergency Response Guidebook |
| NAICS |
North American
Industrial Classification System |
| NAI |
National
Antimicrobial Information |
| NAL |
National
Agricultural Library |
| NALMS |
North American Lake
Management Society |
| NRDC |
Natural Resources
Defence Council |
| NARUC |
National
Association of Regulatory Utility Commissioners |
| NASDA |
National
Association of State Departments of Agriculture |
| NASIS |
National Soils
Information System |
| NASQAN |
National Stream
Quality Accounting Network |
| NASS |
National
Agricultural Statistics Service |
|
NWAP |
National Wetlands
Awards Program |
| NAWQA |
National
Water-Quality Assessment Program |
| NCEAS |
National Center for
Ecological Analysis and Synthesis |
| NCEPI |
National Center of
Environmental Publications and Information |
| NCFC |
National Council of
Farmer Cooperatives |
| NCOD |
National Drinking
Water Contaminant Occurrence Database |
| NDA |
Natural Disaster
Assistance (USDA) |
| NDWC |
National Drinking
Water Clearinghouse |
| NEEAP |
National
Environmental Education Advancement Project |
| NEETF |
The National
Environmental Education & Training Foundation |
| NEMI |
National
Environmental Methods Index |
| NEMO |
Nonpoint Education
for Municipal Officials |
| NEP |
National Estuary
Program |
| NETC |
National
Environmental Training Center for Small Communities |
|
NETC |
National Extension
Technology Conference |
| NETCSC |
National
Environmental Training Center for Small Communities |
| NFWF |
National Fish and
Wildlife Foundation |
| NGA |
National Governors'
Association |
| NGGIP |
National Greenhouse
Gas Inventories Programme |
| NGWA |
National
Groundwater Association |
| NHA |
Natural History
Area (see MDC) |
|
NIWR |
National Institute
for Water Resources |
| NL&CBC |
National Lewis
& Clark Bicentennial Council |
| NOAA |
National Oceanic
and Atmospheric Administration |
| NPDES |
National Pollutant
Discharge Elimination System |
| NPPC |
National Pollution
Prevention Center |
| NPPC |
National Pork
Producers Council |
| NPPR |
National Pollution
Prevention Roundtable |
|
NPS |
National Park
Service |
| NPS |
Nonpoint Source
Pollution Program |
| NPSMP |
Nonpoint Source
Management Plan |
| NPTN |
National Pesticide
Telecommunications Network |
| NRAES |
Natural Resource,
Agricultural, and Engineering Service |
| NRCS |
Natural Resource
Conservation Service (Missouri) |
| NRCS |
Natural Resources
Conservation Service (U.S.) |
| NRCS |
NRCS State Offices |
| NREM |
Natural Resources
and Environmental Management Programs |
|
NRIAI |
Natural Resources
Inventory and Analysis Institute |
| NRLS |
National Recreation
Lakes Study |
| NRVMA |
National Roadside
Vegetation Management Association |
| NRWA |
National Rural
Water Association |
| NSCEP |
National Service
Center for Environmental Publications |
| NSCSS |
National Society of
Consulting Soil Scientists |
| NSDI |
National Spatial
Data Infrastructure |
|
NSL |
National
Sedimentation Laboratory |
| NSSC |
National Soil
Survey Center |
| NSTA |
National Science
Teachers Association |
| NTIS |
National Technical
Information Service |
| NVCS |
National Vegetation
Classification System |
| NWBLC |
National Web-Based
Learning Center |
| NWC |
National Water
Conditions (USGS) |
| NWCC |
National Water and
Climate Center |
| NWI |
National Wetland
Inventory (SCS and USDA) |
| NWRA |
National Water
Resources Association |
| NWQD |
The National Water
Quality Database |
| NWQIER |
National Water
Quality Inventory Electronic 305(b) Report |
| NWQMC |
National Water
Quality Monitoring Council |
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