From the BBC News report that the law has its final approval:
The Conservative, Labour and Liberal Democrat leaderships all backed the proposals, which were finally approved by MPs and peers earlier this week.
It is expected that the first gay and lesbian wedding ceremonies will take place by summer next year.
Under the terms of the the Marriage (Same Sex Couples) Bill, religious organisations will have to “opt in” to offering weddings, with the Church of England and Church in Wales being banned in law from doing so.
Commons Speaker John Bercow announced the bill had received Royal Assent – the formal approval of the sovereign required for all legislation. The news was greeted with cheers in the Commons chamber.