The process for religious schools to turn away gay students would be made consistent across the country, if a proposal from the yet-to-be-released Ruddock review into religious protections is adopted by the Federal Government.

Key points: Review into religious protections recommended schools be able to discriminate on sexual orientation

Review into religious protections recommended schools be able to discriminate on sexual orientation Prime Minister Scott Morrison says yet-to-be-released review has not yet been considered by Cabinet

Prime Minister Scott Morrison says yet-to-be-released review has not yet been considered by Cabinet Shadow Education Minister Tanya Plibersek says review is a "disturbing proposition"

The Coalition set up the review after last year's same-sex marriage debate, in what was seen as a bid to placate opponents of the move who were concerned it would restrict the ability of individuals to practice their religions.

Veteran Liberal MP Philip Ruddock chaired the panel, which delivered its findings to the Federal Government in May.

One of the recommendations is that the legislative provisions allowing religious schools to discriminate on the basis of sexual orientation, gender identity or relationship status should be made consistent around the country.

Commonwealth, state and territory legislation present a variety of provisions regarding discrimination based on sexual orientation, and various exemptions for religious schools.

The measure would only affect students, as schools set up for religious purposes already have the right to take such matters into account when hiring staff or contractors.

Schools would have to publicly outline their policy on the matter, and the measures could only be used in expelling current students if their parents were warned of the school's policy prior to enrolment.

The proposal put forward by the Ruddock review would bring consistency across the country.

Former Liberal MP Philip Ruddock delivered his report to the Federal Government months ago. ( ABC News: Marco Catalano )

Prime Minister Scott Morrison would not comment on the specific recommendation, but said each proposal of the report would be considered "carefully and respectfully" before any final decision was made.

He stressed the review was yet to be released and had not yet been considered by Cabinet.

"It's a report to Government, not from Government," Mr Morrison told reporters on the New South Wales central coast.

"It's a report that the Government will be considering and developing a balanced response to, and we will do that in our orderly process, taking it through Cabinet.

"I want to make it clear that what was reported today is existing law."

Labor won't support expanding discrimination, Plibersek says

Shadow Education Minister Tanya Plibersek labelled it a "disturbing proposition".

"It's difficult to comment without seeing the report, but our general proposition is Labor doesn't expand discrimination opportunities," Ms Plibersek told ABC News Breakfast.

"What kind of adult wants to turn away a child, wants to reject a kid because they are gay?"

Christian Schools Australia said it was not aware of any students who had been turned away based on their sexuality.

"I can't think of a particular example where that's happened, to my knowledge," the group's national policy head, Mark Spencer said.

"I am aware of situations where students who may be same-sex attracted or may be working out their sexuality, have because of their behaviour, because of their conduct more broadly, been disciplined within the school context.

"But not merely on the basis of being same-sex attracted."

However, he said Christian schools often preferred to employ Christian teachers and would welcome a move to bring greater consistency to the legislation.

The panel's recommendation does not go so far as to allow schools to discriminate on the basis of race, disability, pregnancy or intersex status, and called on any state legislation allowing that to be repealed.

Other members of the religious freedoms panel include Human Rights Commission president Rosalind Croucher, former Federal Court judge Annabelle Bennett and Australian Jesuit priest and human rights lawyer Frank Brennan.

Special Minister of State, Alex Hawke described allowing religious schools to discriminate against students as an "absolutely" acceptable proposal.

"I don't think it's controversial in Australia that people expect religious schools to teach the practice of their faith and their religion," he told Sky News.

"That's the point of a religious school, and in Australia you have choice of schooling — you have the public system, you have the private and independent system, and you have religious and faith-based schools."