A Church of England report on human sexuality was being published today in the wake of the row over gay clergy in the Anglican Communion.
The guide, entitled Some Issues in Human Sexuality, was being launched at a news conference at Church House in London.
The report is a follow up to the 1991 document Issues in Human Sexuality which said gay people in long-term relationships should not be excluded from the fellowship of the Christian church or from Holy Communion.
But the document demanded celibacy from gay clergy because of their status.
The Bishop of Oxford, the Rt Rev Richard Harries, who chaired the working party which drew up the report, the Rt Rev Michael Scott-Joynt, Bishop of Winchester, and the Rt Rev Peter Forster, Bishop of Chester, were due to introduce the guide today.
The Church of England has insisted that the new document will not change or suggest changes to current church policy.
The report comes after the controversial consecration on Sunday of Canon Gene Robinson, an openly gay man with a long term male partner, as Bishop of New Hampshire in the US.
A rite for the blessing of same sex partners which has been authorised in New Westminster, Canada, has also come under fire from traditionalist Anglicans.
The leaders of the Anglican Communion meeting at a crisis summit at Lambeth Palace last month warned that the consecration of Bishop Robinson threatened the future unity of the worldwide church.