four years unless the parliament is dissolved at an earlier date. The plenum must convene within 30 days from the date of the general election. The period for regular plenary session starts on the first Monday in October of each year and cannot last less than five months. The interval between two elections is called a parliamentary term. Consecutive parliamentary terms have been listed on a continuous number sequence since 1975 with the present being the 18th parliamentary term. Parliament holds regular Sessions during a parliamentary term, and there may also be extraordinary and special sessions. The president of the republic may call an extraordinary session "whenever he may deem it reasonable" and also decide upon its duration and purpose. On occasion, should specific conditions apply, the parliament has to call a special session and perform its special duties by virtue of the constitution: 1) elect the president of the republic, 2) decide whether to elect a new president in the event of a prolonged incapacity hindering the president of the republic from the discharge of his duties, 3) adopt a presidential decree imposing a state of siege (state of emergency) or prolonging the state of siege, and 4) resolve on a motion of confidence which is mandatory whenever a new government is being formed. During its special sessions, the parliament deals exclusively with the matter for which it was convoked. When the parliament is in recess, usually in the summer, legislative work and parliamentary control is exercised by the recess section. Each recess section is composed of one third of all MPs (100). There are three recess sections, one for each month in July, August and September, where all MPs participate at least once. Organisation Speaker, Deputy Speakers and Deans The speaker of the parliament presides over parliamentary sittings and represents parliament in international parliamentary organizations and bilateral inter-parliamentary sittings. By virtue of the Greek constitution, the speaker shall temporarily exercise the office of president of the republic should the latter be absent abroad for more than ten days, passes away, resigns, is deposed or hindered from performing his duties for any reason whatsoever. Electing a speaker requires an absolute parliamentary majority (151 votes). Should a majority not be attained, there is a new round of voting to elect the candidate who achieves most of the votes cast by relative majority. Deputy speakers fill in for the speaker in