| Abbreviation | Definition |
|---|---|
| NEPM | National Environment Protection Measures |
| NEQA | National Environmental Quality Act |
| NEQS | National Environmental Quality |
| NEQS | National Environmental Quality Standards |
| NER | New England Recycling |
| NERA | National Energy Rating Association |
| NERC | Natural Environment Research Council |
| NERI | National Environmental Research Institute |
| NERM | National Emission Reduction Master Plan |
| NERP | National Emissions Reduction Plan |
| NERP | National Environmental Research Park |
| NERP | National Environmental Research Park, Hanford, Washington |
| NERP | National Environmental Research Parks |
| NERP | National Environmental Research Program |
| NERR | National Estuarine Research Reserve |
| NERSA | National Energy Regulator of South Africa |
| NERT | Nevada Environmental Response Trust |
| NERV | New Cumnock Environmental Regeneration Volunteers |
| NERVTAG | New and Emerging Respiratory Virus Threats Advisory Group |
| NES | Nuverra Environmental Solutions |