The Speaker presides over the House's debates, determining which members may speak. The Speaker is also responsible for maintaining order during debate, and may punish members who break the rulesof the House. The Speaker remains strictly non-partisan, and renounces all affiliation with his or her former political party when taking office for the duration of his term. The Speaker does not take part in debate or vote. Apart from duties relating to presiding over the House, the Speaker also performs administrative and procedural functions, and remains a constituency Member of Parliament. The Speaker would be a chairmen of the constitutional council. The Speaker may accept the resignation of the President. The Chief Justice in consultation with the Speaker may determine that the President is temporarily unable to exercise, perform and discharge the powers, duties and functions and appoint the Prime Minister as acting President.
Appointment
As per the Article 64 of the Constitution when Parliament first meets after a general election, it will elect three members to serve as the Speaker, Deputy Speaker and Chairman of Committees and the Deputy Chairman of Committees. The Speaker would vacate his office only if he tenders his resignation to the President or ceases to be a Member of Parliament or when Parliament dissolved.
Deputies
The Speaker is assisted by two deputies, all of whom are elected by the House. These are Deputy Speaker and the Deputy Chairman of Committees. In the absence of the Speaker, the Deputy Speaker or in their absence the Deputy Chairman of Committees, shall preside at sittings of Parliament. If none of them is present, a Member elected by Parliament for the sitting shall preside at the sitting of Parliament.
Precedence, salary, residence and privileges
The Speaker is the third highest-ranking official in Sri Lanka. At present, Speaker ranks in the order of precedence after the President and Prime Minister. From 1948 to 1971 the Speaker ranked fifth in the precedence after the Governor General, the Prime Minister, the Chief Justice and the President of the Senate. From 1971 to 1978, the Speaker ranked fourth in the precedence after the Governor General/President, the Prime Minister and the Chief Justice. After the second amendment to the Republican Constitution in 1978, in which the Speaker was placed second in the presidential line of succession; the Speaker gained his current position in the order of precedence. In 2016, the Speaker received a salary of Rs. 68,500 per month and other entitlements of a Member of Parliament. In addition, the Speaker can use the Speaker's Residence and entitled to transport and security arranged by the Parliamentary Secretariat. At each sitting of parliament, the Speaker travels in to the chamber in procession, after the Serjeant-at-Arms carrying the ceremonial mace that symbolises the authority of the Parliament. Serjeant-at-Arms attends the Speaker on other occasions. The Speaker has his office in the Parliament Complex and the Secretary General of Parliament, who is in charge of the administrative duties of Parliament reports to the Speaker.
Official dress
On ceremonial sittings or occasions, the Speaker wears a robe of black satin damask trimmed with gold lace, a mourning rosette and frogs with full bottomed wig. On normal sitting days, the Speaker wears only the robe and rosette without the wig or in certain cases without the official dress. This practice was adopted from the official dress of the Speaker of the House of Common.