The assembly is expected to hold its first meeting in October
The Government has opened a tendering process for a polling firm to find 99 members of the public for the Citizens' Assembly.
The application says that the Department of the Taoiseach wants "skilled and experienced suppliers to provide the names, address and contact details" of people who are willing to act as members of the assembly.
As part of the process, 99 substitute members will also be sought.
The assembly is to debate, among other issues, the eighth amendment of the Constitution.
Other topics on the assembly's agenda include how to best respond to the challenges of an ageing population, fixed term parliaments, how referendums are held, and how Ireland can be a leader in tackling climate change.
The Government says the assembly will also be asked to consider "such other matters as may be referred to it."
The group will first make a report and recommendation, and will have one year from the date of its first meeting to complete its work.
"The members of the assembly should be chosen at random and representative of society as regards age, gender, social class, regional spread etc and should also be on the electoral register to vote in a referendum," it says.
Members will also have to participate in up to 10 weekend events during the course of the year.
The assembly is expected to hold its first meeting in October. The deadline for applications to fill the tender is noon on August 19th.