The National Public Health Emergency Team reportedly first asked for mandatory hotel quarantine to be introduced last May.
After months of calls from the public and opposition TDs, passengers from 33 so-called "high risk" countries will be forced to spend two weeks in a hotel upon arriving in Ireland.
But it has since emerged that members of both NPHET and Cabinet reportedly wanted the rules to be brought in for all passengers.
Some of Ireland's health experts noted that travel measures "should be extended to all inbound travellers", according to meeting minutes from February 18.
Those who wanted the system to be extended cited the importance of the vaccine rollout and "how quickly epidemiological landscape is changing", the Irish Independent reports.
NPHET also agreed that the focus should be on implementing a "robust strategy" and "legal underpinning" for travelers first before bringing in an extension of rules.
The operation will be organised by the Tifco Hotel Group on behalf of the Government, with four of its Dublin hotels being used.
Public Expenditure Minister Michael McGrath confirmed on Sunday that the plan will get underway this week after being signed into law by President Michael D Higgins earlier this month.
Health Minister Stephen Donnelly is expected to outline how the system, which has been implemented in Australia and New Zealand, will work here.
There are 33 countries, mainly in Africa and South America, on the Government's Category 2 list of "high risk" countries.