• NG1 – Issued to members of delegations invited by the Secretary General of Vietnam’s Communist Party, the President of Vietnam, the President of the National Assembly, and the Prime Minister.
• NG2 – Issued to members of delegations invited by standing members of the Secretariat of the
  Vietnam’s Communist Party, Deputy President of Vietnam, Deputy President of the National
  Assembly, Deputy Prime Minister, President of Vietnamese Fatherland Front, Executive Judge of The Supreme Court, Chief Procurator of the Supreme Procuracy, State Auditor General; members of delegations at the same levels of Ministers, Secretary Generals of Provincial Communist Authorities, President of the People’s Committees of provinces.
• NG3 – Issued to members of diplomatic missions, consular offices, representative Offices of
  international organizations affiliated to the UN, representative Offices of intergovernmental
  organizations and their spouses, children under 18 years of age, and housemaids during their term
  of Office.
• NG4 – Issued to persons who come to work with diplomatic missions, consular missions,
  representative Offices of international organizations affiliated to the United Nations, intergovernmental representative Offices and accompanying spouses, children under 18 years of age; visitors of diplomatic missions, consular missions, representative Offices of international organizations affiliated to the United Nations and intergovernmental representative Offices.
• LV1 – Issued to people who come to work with units affiliated with Vietnam’s Communist Party; the National Assembly, the government, the Central Committee of Vietnamese Fatherland Front, the People’s Supreme Court, the People’s Supreme Procuracy, State Audit Agency, Ministries, ministerial agencies, Governmental agencies, the People’s Councils, the People’s Committees of provinces.
• LV2 – Issued to people who come to work with socio-political organizations, social organizations, Vietnam  Chamber of Commerce and Industry.
• LS – Issued to foreign lawyers practicing in Vietnam
• DT1 – Issued to foreign investors in Vietnam and representatives of foreign organizations investing in Vietnam and contributing capital of VND 100 billion or more or investing in business lines benefitting from investment incentives, in administrative divisions benefitting from investment incentives decided by the Government.
• DT2 – Issued to foreign investors in Vietnam and representatives of foreign organizations investing in Vietnam and contributing capital of VND 50 billion to less than VND 100 billion or investing in business lines benefitting from investment incentives treatment decided by the Government.
• DT3 – Issued to foreign investors in Vietnam and representatives of foreign organizations investing in Vietnam and contributing capital of VND 3 billion to less than VND 50 billion.
• DT4 – Issued to foreign investors in Vietnam and representatives of foreign organizations investing in Vietnam and contributing capital of less than VND 3 billion.
• DN1 – Issued to foreigners working with other enterprises and organizations that are juridical persons as per the law of Vietnam.
• DN2 – Issued to foreigners making entry to promote services, establish commercial presence or
  conducting other activities according to international agreements to which Vietnam is a signatory.
• NN1 – Issued to Managers of representative Offices or projects of international organizations and
  foreign non-governmental organizations in Vietnam.
• NN2 – Issued to heads of representative Offices, branches of foreign traders, and representative Offices of other foreign economic, cultural, and professional organizations in Vietnam.
• NN3 – Issued to people who come to work with foreign non-governmental organizations,
  representative Offices, branches of foreign traders, and representative Offices of other foreign economic, cultural, and professional organizations in Vietnam.
• DH – Issued to people who come to study or serve an internship.
• HN – Issued to people who come to attend conventions or conferences.
• PV1 – Issued to journalists who have permanent residences in Vietnam.
• PV2 – Issued to journalists who come to work for a short time in Vietnam.
• DL – Issued to tourists.
• LD1 – Issued to foreigners working in Vietnam and certified of eligibility for work permit exemption, unless otherwise specified by international agreements to which Vietnam is a signatory;
• LD2 – Issued to foreigners working in Vietnam requiring work permit;
• TT – Issued to foreigners that are spouses or children under 18 years of age of foreigners issued with LV1, LV2, LS, DT1, DT2, DT3, NN1, NN2, DH, PV1, LD1 or LD2 visas or foreigners that are parents, spouses or children of Vietnamese citizens.
• VR – Issued to people who come to visit their relatives or for other purposes.
• SQ – Issued a visa that is valid for not more than 30 days to the following foreigners who come to Vietnam for the purpose of market survey, tourism, visiting relatives, or medical treatment:
  – Any person who has works to do with an overseas visa-issuing authority of Vietnam, his/her
  spouse and children; any person who presents a written request by a competent agency of the
  Ministry of Foreign Affairs of the host country;
  – Any person who presents a diplomatic note of sponsorship by a foreign diplomatic mission or
  consular Office in the host country.
• EV – Electronic visas.
  The duration of the above visas is as follows:
  • Time limits of SQ and EV visas do not exceed 30 days;
  • Time limits of HN, and DL visas do not exceed 3 months
  • The time limit of the VR visa does not exceed 6 months
  • Time limits of NG1, NG2, NG3, NG4, LV1, LV2, DT4, DN1, DN2, NN1, NN2, NN3, DH, PV1, PV2 and TT visas do not exceed 12 months
  • Time limits of LD1 and LD2 visas do not exceed 2 years;
  • Time limit of the DT3 visa does not exceed 3 years;
  • Time limits of LS, DT1 and DT2 visas do not exceed 5 years.

The duration of a visa shall be at least 30 days shorter than that of a passport or international laissez-passer
Specific regulations for each type of visa may vary depending on nationality and intended use. For the most accurate and detailed information, you should consult directly with the government agencies or Vietnamese consulate in your country.

– Quyen Nguyen –