Representatives from social media companies will appear before the Oireachtas Committee on Media, where they are expected to outline the safety features on their platforms.
Executives from Meta, TikTok and Google will attend the hearing, however X has declined an invitation to appear.
In an opening statement to the committee, Director of Public Policy for Meta in Ireland Dualta Ó Broin will outline features such as parental controls and teen accounts for Instagram, Facebook and Messenger.
On age verification, Mr Ó Broin is expected to repeat Meta's preference for age checks to be done at the app store level. He will also voice Meta's support for the establishment of a Digital Age of Majority at EU level, below which parents would decide which apps they want their children to have access to.
"The question of age verification is complicated, however as I have said previously in this house we believe that the time has come to move forward with an effective solution at the European level that addresses the concerns of all stakeholders including parents," Mr Ó Broin is expected to tell committee members.
He will also say that Meta takes an extremely strong stance against non-consensual intimate imagery, whether it is real or AI-generated.
"Our AI tools are trained not to comply with requests to create nude images or to remove clothes from people shown in images - and we have built-in safeguards to prevent these violating images from being created," according to his opening statement.
Head of Public Policy and Government Relations at TikTok Susan Moss will tell the committee that trust and safety represents the largest labour expense for TikTok's Irish operations, with "thousands of people working across safety, privacy, and security on a daily basis."
On age verification, TDs and Senators will hear that TikTok believes that a multi-layered approach to age assurance, in which multiple techniques are used, is needed to protect teens.
"In the coming weeks, we will begin to roll out enhanced technology in Europe to further support how our moderation teams detect and remove accounts that belong to someone under the age of 13," Ms Moss is expected to say in her opening statement.
'Disgraceful' that X won't attend committee
Committee Chair Alan Kelly said it was "disgraceful" that X has refused to attend today's hearing.
"It is extremely disappointing and worrying that X have refused to attend, especially after a request was additionally made by the Taoiseach for them to do so," the Labour TD said.
"This meeting will examine how major online platforms approach regulation, online safety and the protection of children and young people.
"We plan to discuss issues including content moderation, the use of technology and human oversight to address harmful and illegal content, age-appropriate design, age assurance, and the role of digital literacy and user empowerment," he added.