This is the first time the new government will sit since the November election, and government negotiations took about five weeks.
The new Dáil has already become a source of controversy after a number of independent MP candidates, including Michael Lowry, Danny Healy-Rae, Barry Heneghan and Gillian Toole, who support the government, want to sit and speak from the opposition benches.
New Sian Cumhairle (speaker) – also a regional independent – Verona Murphy, who is the first woman to hold the role, told TDs she would consider submissions opposing the plan but allowed the group to “temporarily” take their original seats. .
All other opposition groups oppose the idea, calling it a presence of both camps and a time-suck for those who want to carefully monitor the government.
As part of his return to the Dáil on Wednesday, Mr Martin will travel to Áras an Uachtaráin at around 1pm local time to meet Irish President Michael Higgins in a state reception.
The President will then sign the warrant of appointment and give the seal of the Taoiseach and the seal of the Government to Mr Harris.
Later, at approximately 20.00, the appointment of members of the government will begin.
The President will sign the Cabinet Appointment Warrant and the Attorney-General’s Appointment Warrant, each of which will be signed by the Taoiseach.
The President then presents each minister in turn with their seals of office.
