The 4th Central Committee of the Communist Party of Vietnam (CPV) was elected at the 4th CPV National Congress. It elected the 4th Politburo and the 4th Secretariat.
The Central Committee (CC) is not a permanent institution. Instead, it convenes plenary sessions between party congresses. When the CC is not in session, decision-making powers are delegated to its internal bodies; that is, the Politburo and the Secretariat. None of these organs are permanent bodies either; typically, they convene several times a month.