Newspaper Publishers Association报纸出版商协会 Numbering Plan Area (telephony, the so-called Area Code)编码方案区(电话,所谓的区号) National Pharmaceutical Association全国制药协会 Network Professional Association (self-regulating, non-profit association of network computing professionals)网络专业协会(自律的非赢利性组织网络计算人员) National Perinatal Association全国围产期联合会 National Prescription Audit国家处方检查 National Parenthood Association全国父母亲协会 National Petroleum Association全国石油协会 National Pet Association全国观赏动物协会 National Parks Association全国公园协会 Nanopyramid ArrayNanopyramid阵列 Nordic Planetarium Association北欧天文协会 No Police Action没有警察行动 National Prostate Association国家前列腺协会 National Pasta Association (Washington, DC)国家意大利面食协会(华盛顿特区)