The Department of Transport is set to reject the proposed "one-pint drink-drive limit".
A report published in June by academic and legal expert Sir Peter North called for the limit to be cut from 80 to 50mg per 100ml of blood. It would mean anyone drinking a pint of beer would be over the legal limit.
But Transport Secretary Philip Hammond looks set to rule out the proposal on the grounds that it would be too damaging to rural pubs.
"The minister is very sceptical indeed about this idea," an inside source told the Evening Standard. "He is far from convinced that it would be a good thing."
A spokesman for the Department of Transport said it was still considering its official response to the report and would respond in due course.
When the report was published in June, Hammond said: "It is important that we fully investigate the economic and public service resource impact of any suggested changes to the law, taking account of the current financial and economic situation."