The BBC reported that the House of Commons is scheduled to consider the measure on Feb. 5.
The Churches of England and Wales would be legally prohibited from marrying same-sex couples unless they opt into the law — the Church of England announced earlier this month that clergy in same-sex civil partnerships can become bishops as long as they remain celibate. It maintains marriage should be reserved for a man and a woman.
A law that allows gay couples in the United Kingdom to register as civil partners took effect in 2005.
Scottish lawmakers are expected to consider a same-sex marriage proposal later this year, while French legislators are scheduled to begin debate on the issue on Tuesday. Belgium, Denmark, the Netherlands, Portugal, Spain and Sweden are among the other European countries in which gays and lesbians can legally tie the knot.
“We’re pleased that the government has introduced this bill and we’ll be working hard over the coming weeks and months to secure this final modest measure of legislative equality for lesbian, gay and bisexual people,” Andy Wasley of the British LGBT advocacy group Stonewall told the Washington Blade. “It’s now vital that the seven in 10 people in Britain who support equal marriage call on their members of Parliament to stand up and argue for it.”