Outstanding plenary sessions
* First session in Hanoi from June 27 to July 3, 1964
- The National Assembly elected:
+ State President: Ho Chi Minh
+ Vice State President: Ton Duc Thang
+ The National Assembly Standing Committee: 23 full and three alternate members
+ National Assembly Chairman: Truong Chinh
+ Prime Minister: Pham Van Dong
+ National Assembly Committees: Law-Building Committee; Planning-Budget Committee; Committee on Ethnic Affairs; Committee on Unification; Committee on Socio-cultural Affairs
* Fourth session from May 19-22, 1968
The National Assembly issued a resolution on the extension of the third National Assembly’s tenure and assigned the National Assembly Standing Committee to decide on the organisation of the election of deputies to the fourth National Assembly when conditions permitted.
* On September 22, 1969, the fifth session convened a special meeting to commemorate President Ho Chi Minh, and elected Ton Duc Thang as the new State President.
The third National Assembly ran from June 1964 to June 1971 with seven plenary sessions.