The dispute between toll tag provider eFlow and toll plaza operator Celtic Roads Group has been resolved.
eFlow tags were due to stop working from next Wednesday on the M1 near Drogheda, the M7/ M8 near Portlaoise and the N25 Waterford City Bypass, after the companies could not agree on charges.
The agreement reached today means that the tags will continue to be accepted at those toll points and there is no change in existing services for customers of both eFlow and CRG.
Transport Infrastructure Ireland (TII) welcomed the "positive outcome" from the discussions.
Minister for Transport, Tourism and Sport Shane Ross also welcomed the news.
"The contractual arrangements relating to toll tag interoperability are entirely matters for TII and are commercially sensitive," he said.
"It was the case that unless agreement was reached, with effect from August 31 eFlow's tags would no longer be accepted at toll points on M1 near Drogheda, M7/M8 near Portlaoise and the N25 Waterford City Bypass. (Tags from other providers at those toll points were not affected).
"Negotiations between eFlow and Celtic Roads Groups have been ongoing for some time and I am pleased to say that a satisfactory agreement has now been reached between the parties.
"This is good news for road users and it means eFlow tags will continue to be recognised at all toll points across the country.
"Toll tag interoperability in practical terms means that a toll tag issued by one operator is recognised by all toll operators and this is a major benefit to motorists.
"The good news is that from 31 August, eFlow tags will continue to be accepted at CRG toll plazas.
"Motorists who have changed their tag from eFlow to another operator are not affected. There is no cost associated with switching tag providers and all toll tag providers charge a monthly fee."