The annual party meeting, chaired by Mr Abhisit, was attended by many senior party members including Marut Bunnag, Bhichai Rattakul and Chuan Leekpai.
Mr Abhisit informed the meeting of the party's intentions in amending the regulations to make way for the restructuring of the party and of the resignation of Chalermchai Sri-on as party secretary-general on Dec 13.
He said the amendment of the party's regulations has three main objectives.
First, there will be a party central committee with former party leaders and former party secretaries-general, who are still party members, as ex-officio members. The central committee will also have 18 other members, who need not necessarily be party members. It membership must be resourceful in economic, political, social, administrative and other fields.
The central committee is responsible for giving advice and suggestions for the party to work on. This emphasises the need for the party to have resourceful persons in society take part, in line with the current move to reform the country, Mr Abhisit said.
Second, the executive committee will have 35 members, up from 19.
Third, there will be three new committees in the party. They are the committee for selecting election candidates, the committee on party policies, and the committee for promotion of democracy in the party.
The meeting endorsed the change of party's regulations.
The meeting then appointed Trairong Suwannakhiri, Charoen Kanthawong, Thoedpong Chaiyanan, Suthas Ngoenmuen and Niphon Wisityuthasart to a committee supervising the election of the new executive committee.
Former party leader Banyat Bantadtan then nominated Mr Abhisit for the post of party leader without competition.
Mr Abhisit was subsequently re-elected by 98% of the eligible voters.