The government will sign the contract for the National Broadband Plan this morning.
It aims to bring high speed internet to 1.1 million people, largely in rural Ireland.
Cabinet Ministers met from early this morning to sign off on the National Broadband Plan contract.
Communications Minister Richard Bruton has tweeted that today is an "historic day for Ireland."
He says it's the biggest investment in country areas since rural electrification.
The first homes under this project are likely to be connected next year while work is set to begin this year on broadband hubs, which are communal workspaces in rural Ireland with access to high speed internet.
The project will cost almost three billion euro, which has led to debates surrounding the ownership of the network when it's complete.
Those calls become more difficult for opposition parties from today, once the contract is signed.