In the Arab countries the chairman is usually the speaker of the parliament or his deputy and sometimes the eldest member of the parliament (see fig. T2). In this comparison table we’ve shown the states that elect their speaker and his deputy, in addition to the states that appoint them. We’ve also mentioned the states where the speaker takes his oath before the parliament and the states where he takes it before the head of the state. This comparison table also points out the states where the speaker and the parliament rule for the same term and the states where the speaker’s term is shorter than that of the parliament, in addition to numbering the cases where the speaker takes over the missions of the head of the state, (absence, taking part in the discussions, vacancy).

We should mention here that some states make a distinction between the absence and the vacancy. While others mentioned only the case of absence without the vacancy, or vice versa. So we can conclude from here that in these countries absence and vacancy are the same. Then we’ve shown in another comparison table (see figure T3). Some of the missions of the speaker without detailing them all (see general index). We’ve distributed these missions into administrative missions, regularity missions and constitutional missions. We’ve come up with three Arab countries (Yemen, Egypt, Tunisia) in which the speaker takes over the missions of the head of the state in case of a vacancy. Noting that in Yemen the parliamentary office takes over the missions of the head of the state in case he and his deputy were on trial (art 126 constitution)