| Circular 51/2015/TT-BLDTBXH dated December 8, 2015 promulgating the National technical regulation on safe work for Forklift truck use the engine, with load from 1.000kg or more. | Circular | Ministry of Labour - Invalids and Social Affairs | Ministry of Labour - Invalids and Social Affairs | |
| Circular 51/2015/TT-BLĐTBXH Promulgating national technical regulations on labor safety for motorized forklifts, with lifting capacity of 1,000 kg or more | Circular | Ministry of Labour - Invalids and Social Affairs | Ministry of Labour - Invalids and Social Affairs | |
| Circular 51/2018/ TT-BCT amending Joint Circular 47/2011/TTLT-BCT-BTNMT regulating the management of import, export and temporary import - re-export of ozone layer depleting substances Montreal Protocol provisions | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 52/2012/T--BGTVT dated December 21, 2012 promulgating three National Technical Regulations on parts of motorcycles. | Circular | Ministry of Transport | Ministry of Transport | |
| Circular 52/2014/TT-BCT dated December 15, 2014 promulgating the Natonal Technical Regulation on safety of pipe lines for steam and hot water of power plant. | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 52/2015/TT-BYT regulations state inspection of food safety for imported foods | Circular | Ministry of Health | Ministry of Health | |
| Circular 52/2020 / TT-BCT regulates tariff rate quota for salt and poultry eggs import 2021 | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 53/2014/TT-BNNPTNT amending Circular No. 27/2009/TT-BNN of May 28, 2009, prescribing the import quarantine of bovine from Laos and Cambodia to Vietnam | Circular | Ministry of Agriculture and Rural Development | Ministry of Agriculture and Rural Development | |
| Circular 53/2015/TT-BCT dated December 30, 2015 of the Ministry of Industry and Trade stipulating the registration of imported goods and temporarily imported goods of foreign construction contractors in Vietnam | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
| Circular 54/2015/TT-BCT prescribed list of goods traded and exchanged by border residents by the Minister of Industry and Trade issued | Circular | Ministry of Industry and Trade | Ministry of Industry and Trade | |
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