PLANS for a transfer of power from Westminster to Holyrood have been signed, sealed and delivered, according to Ed Miliband.

The Labour leader visited Glasgow yesterday after a new set of proposals on extending devolution was unveiled.

Mr Miliband hailed the package as a "radical transfer of powers that puts the Scottish Parliament as one of the most powerful parliaments of its kind in the world".

He said: "We have listened. We have learned. And we have changed. A vow was signed during the referendum campaign.

"It has been signed. It has been sealed. It has been delivered."

However, the SNP said that the Smith Commission's proposals had left a number of welfare groups in civic Scotland disappointed.

SNP MSP Linda Fabiani, who represented the party, said groups including the Child Poverty Action Group, the National Union of Students and One Parent Families Scotland believe the recommendations could have gone further. Ms Fabiani said: "With 70% of our taxes and 85% of welfare staying at Westminster, the Scottish Parliament's hands will continue to be tied as consecutive Westminster governments make the wrong choices for Scotland."

"The SNP will always welcome new powers for Scotland - and we have been clear that in government we will use them in the best interests of the Scottish people.

"However, the fact is that the proposals do not meet the aspirations of the Scottish people and civic Scotland."

The Smith Commission had been set up by the UK Government immediately after September's referendum, in which 45% of voters backed independence.

Just days before the historic vote, Mr Miliband, Conservative leader David Cameron and Liberal Democrat leader Nick Clegg jointly vowed Scotland would get substantial new powers if it voted to stay in the UK.

Representatives from the five parties at Holyrood - the SNP, Labour, the Conservatives, Liberal Democrats and the Greens - worked together to produce the report, which will now form the basis for draft legislation to be published in January.

The leaders of the Westminster parties have already pledged that this will be put into law, regardless of the outcome of next May's general election.