Scotland's First Minister Nicola Sturgeon has reportedly labelled government plans to stop Scottish MPs voting on English laws as "unacceptable" as there is a "clear Scottish interest".
Mrs Sturgeon said the Scottish government has a "number of concerns about the proposals" and called for further talks, the BBC reported.
An emergency debate was held on the plans last week and a Commons vote on the issue was later postponed until at least September. The government believes bills applying exclusively to England should not become law without the explicit consent of MPs from English constituencies.
According to the broadcaster Mrs Sturgeon wrote a letter to Scottish Sectretary David Mundell saying: "There is a clear Scottish interest in English votes for English laws (Evel) because of the impact it will have, and the proposals, as they currently stand, are unacceptable."
She went on to call for more clarity over the way bills would be assessed, saying that of the 20 listed by the UK government as not extending to Scotland "no fewer than 13" did.
Mrs Sturgeon said those bills covered "important areas" such as charities, criminal justice and anti-slavery measures and had "significant impacts on Scotland".
On Tuesday former Labour leader Ed Miliband described the legislation nicknamed 'English Votes for English Laws' - or 'EVEL' - as an "act of constitutional vandalism".
Mr Miliband said he agreed with Gordon MP Alex Salmond, the former First Minister of Scotland, who is a strong opponent of EVEL.
He said: "I find myself agreeing with the Honourable Member for Gordon."
"Now that doesn't happen very often."