| New Climate Economy | Academic & Science |
| Noise Control Engineering | Academic & Science |
| Newport Convertible Engineering | Academic & Science |
| National Certification Exam | Business |
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| No Cost Extension | Business |
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| New Chemical Entity | Chemistry |
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| Nashville Community Education | Community |
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| National Conference of Executives | Community |
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| Newton Community Education | Community |
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| Network Connection Endpoint | Computing |
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| Nigeria Certificate In Education | Educational Degree |
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| Non Combantant Evacutation | Governmental |
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| National Commission on Entrepreneurship | Governmental |
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| National Commerce Exchange | Governmental |
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| National Counselor Examination for Licensure and Certification negative contrast echocardiography | Medical |
| Net Current Expenditure | Medical |
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