| Circular 49/2015/TT-BYT dated December 11, 2015 promulgating the National technical regulation for cigarette. | Circular | Ministry of Health | Ministry of Health | |
| Circular 49/2018/TT-BCT abolishing Circular 42/2013/TT-BCT regulating on management and control of precursor chemicals in the industrial sector promulgated by the Ministry of Industry and Trade | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 50/2006/TT-BTC, guiding the application of import duty and enterprise income tax preferences to Dung Quat oil refinery project
| Circular | Ministry of Finance | Ministry of Finance | |
| Circular 50/2009/TT-BNNPTNT The List of products, goods potentially unsafe under the management responsibility of the Ministry of Agriculture and Rural Development
| Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 50/2010/TT-BNNPTNT Amending and supplementing the list of products, goods of group 2 attached with Circular 50/2009/TT-BNNPTNT
| Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 50/2014/TT-BCA regulating on issuance and re-issuance of license and certificate of weapons, explosives and support gadget | Circular | Ministry of Public Security | Ministry of Public Security | |
| Circular 50/2015/TT-BNNPTNT dated December 30, 2015 providing regulations on validation of catch certificates, statements | Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 51/2010/TT-BNNPTNT amending Circular 25/2010/TT-BNNPTNT guiding the inspection for food safety for goods of imported animal origin and Circular 06/2010/TT-BNNPTNT
| Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 51/2011/TT-BNNPTNT on the 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 51/2014/TT-BCT dated December 15, 2014 promulgating the National Technical Regulation of equipments, auxiliaries and means for blending, storing and transportation of ethanol, ethanol blended gasoline - gasohol E10 at distribution terminals. | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
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