- The Equality Act (Sexual Orientation) Regulations 2007 [Office of Public Sector Information]
Agencies obey gay adoption rules [BBC NEWS]
Mike Judge from the Christian Institute said agencies were being forced to turn their back on their faith.
He told BBC Radio Five Live that so many agencies were abiding by the legislation showed "how aggressive" the law had been towards faith-based adoption agencies.
"I think it's iconic of a situation where you've got a clash between sexual orientation rights and religious rights where in almost every circumstance I've been aware of, religious rights have been seen to play second fiddle."
Cardinal Cormac Murphy O'Connor, head of the Catholic Church in England and Wales, warned the services of the 11 Catholic adoption agencies - which specialise in difficult to place children - would be "tragically lost to the country".
Catholic Caring Services - one of the agencies which has decided to comply with the regulations - has been disowned by the Bishop of Lancaster Patrick O'Donoghue, a fierce opponent of the new laws.
He has said the Preston-based charity would no longer be able to promote the Church's "moral teaching that a marital setting is better for children rather than being placed with a same-sex couple".