noise equivalent power nuclear electric propulsion National Estuary Program Never-Ending Program National Emphasis Program National Energy Plan National Exercise Program Network Entry Point needle exchange program negative expiratory pressure Network Equipment Provider Nominal Entry Point Normal Entry Point NAS electronics package National Education Price National Education Priority National ELINT Plan National Energy Policy National Energy Program National Enforcement Plan National Extension Programs Navy Enterprise Portal needle exchange programme Neighbourhood Engineer Programme Nepali nephrectomy nephrology Nephros, Inc. neprilysin Net Ecosystem Production
noise equivalent power