The deadline for nominations to contestthe Presidential Election has passed.
The election is due to take place on Friday 26 October, in conjunction with a referendum on blasphemy and its place in the constitution.
Six candidates have secured the necessary support to contest the election -President Michael D Higgins, Sinn Féin's Liadh Ní Riada, Senator Joan Freeman and three businessmen, Seán Gallagher, Gavin Duffy and Peter Casey.
In order to contest the election, candidates required the support of four local authorities or the backing of 20 members of the Oireachtas.
The sitting President can nominate himself to contest the election, which Mr Higgins did.
Ms Ní Riada was nominated by the 28 Sinn Féin members of the Oireachtas, while the remaining four candidates received the backing of local authorities.
Journalist Gemma O'Doherty received the nomination of one local authority, Laois County Council, but did not gain sufficient support to enter the race.
Ms O'Doherty had also been attempting to secure the backing of 20 TDs and Senators to make it to the ballot paper.
Candidates are required tosubmit their papersat the Customs House to complete the formal process of enteringthe election.
Mr Gallagher submitted his yesterday, while Mr Higgins and Ms Ní Riada both submitted theirs on Monday . Mr Duffy did so last Friday.
The opening debate of the campaign is due to take place on RTÉ Radio One tomorrow from 1pm.
Mr Higgins will hold his campaign launch in Dublin this afternoon. Ms Freeman will launch her campaign on Monday and MrDuffy's will take place on Tuesday.
The campaign teams of MrGallagher; Ms NíRiada and Mr Casey say they will launch their campaigns in the coming week.