Since 1949, Catholic party began to open its membership for non-"pribumis", which was based on the decision about the citizenship system of Indonesia, which was established in the Round Table Conference. This decision was reinforced with the approval of the party's constitution in 1950, which stipulates that the terms of membership in the party is: at least 18 years of, a Catholic, and is the citizen of Indonesia. The decision makes the party boasted as one of the first organizations to accept Chinese members and members of European descent.