The DUP has said that a delegation led by Ian Paisley will attend a meeting with Sinn Féin at a Preparation for Government meeting in Stormont tomorrow.
As part of the plan produced by the Irish and British governments at St Andrews in Scotland last Friday, it was agreed there would be a meeting of the Northern Ireland parties at leadership level in Stormont this week.
Speaking on RTÉ Radio, the DUP MP for Lagan Valley, Jeffrey Donaldson, said the DUP delegation would also include Peter Robinson and Nigel Dodds.
Earlier, Sinn Féin confirmed that Gerry Adams and Martin McGuinness will lead the party's delegation.
SF to consider policing issue
Sinn Féin's internal debate about the issue of policing will also start this week. Any shift in policy will involve a two-stage process.
At Ard Comhairle level, a two-thirds majority is required to call a special party Ard Fheis on a single issue, such as policing.
Then, at any subsequent special Ard Fheis, a simple majority is sufficient for a policy change.
The policing debate will test the management skills of Mr Adams and Mr McGuinness.
They will be keen to avoid a situation where they would get the desired result but lose large numbers.
They will also be aware that, against the wishes of the leadership, last year's Ard Fheis voted to leave the decision on policing not to the party's Ard Comhairle, but to an Ard Fheis.