Earlier, the delegates paid tribute to late President Ho Chi Minh at his mausoleum and offered incense to war martyrs at their monument.
At the session, the delegates approved the working regulations of the Congress, and elected the Presidium, the Secretariat, and the Delegate Eligibility Appraisal Board.
They also adopted the working agenda and election regulations for the 12th National Party Congress and reports examining the eligibility of the delegates.
After the preparatory session, the delegates studied the documents provided.
The 12th National Party Congress will officially open in the morning of January 21. It will last till January 28 as according to the agenda.