Domestic Security Protection Bureau, the department of the Ministry of Public Security responsible for political security, monitoring dissidents, religious groups and activities deemed a threat to state stability (abbr. for 国内安全保卫局guónèi'ānquánbǎowèijú)
National Pension Insurance, a social security scheme in Taiwan (abbr. for 国民年金保险guómínniánjīnbǎoxiǎn)
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National Key Cultural Relics Protection Unit (abbr. for 全国重点文物保护单位quánguózhòngdiǎnwénwùbǎohùdānwèi)