The Severn bridge Tolls will revert to public ownership in January, paving the way for tolls to be scrapped by the end of the 2018.
The official confirmation was delivered in a letter to Monmouth MP David Davies who said the news confirmed that the pledge was “not some wild manifesto promise”.
Commenting on the news, Shadow Economy Secretary, Russell George, said:
“Scrapping the tolls could deliver a £100m boost to the regional economy whilst proving that Wales is open for business.
“But the final piece in the jigsaw is making progress on the M4 relief road, and it is vital that we now see progress at earliest opportunity if we are to see the full benefits of scrapping the tolls.
“Once again Conservatives are delivering for Wales, and this announcement will drive significant economic benefits to the wider region around the crossings.”