| Circular 55/2010/TT-BNNPTNT on additional list of plant varieties permitted for production and trading in Vietnam
| Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 55/2012/TT-BGTVT dated December 26, 2012 promulgating the National Technical Regulation on Classification and Technical Supervision of Mobile Offshore Units and National Technical Regulation for Classification and Technical Supervision of Fixed.. | Circular | Ministry of Transport | Ministry of Transport | |
| Circular 55/2012/TT-BNNPTNT Guiding the procedures for appointing conformity certification organization and announce the conformity within the scope of management of the Ministry of Agriculture and Rural Development | Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 55/2014/TT- BGTVT amending Circular No. 31/2011/TT-BGTVT stipulating the inspection of technical safety, quality and environmental protection for imported motor vehicles | Circular | Ministry of Transport | Ministry of Transport | |
| Circular 55/2014/TT-BCT guiding the implementation of Decree 38/2014/ND-CP on the management of the chemicals governed by the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 55/2018/TT-BCT regulating the import of raw tobacco under tariff quotas in 2019 issued by the Ministry of Industry and Trade | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 56/2011/TT-BGTVT about 06 national technical regulations on road motor vehicles by the Minister of Transport issued | Circular | Ministry of Transport | Ministry of Transport | |
| Circular 56/2015/TT-BCT dated December 31, 2015 providing regulations on importation of goods from the People’s Democratic Republic of Laos at tariff-rate quota of 0% | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 56/2018/TT-BCT guiding the implementation of the Vietnam-Laos Border Trade Agreement issued by the Ministry of Industry and Trade | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 56/2019/TT-BTC amending Circular 49/2015/TT-BTC regulating customs procedures for export, import letters, packages and parcels sent via postal services of enterprises. Appointed Enterprises and Circular 191/2015/TT-BTC ... | Circular | Ministry of Finance | Ministry of Finance | |
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