Transgender guidance for schools will take a “little bit longer”, the Education Secretary has said after headteachers vented their frustration over the delay.

Gillian Keegan confirmed on Wednesday that schools will be required to get parental consent for pupils to identify as a different gender. The Association of School and College Leaders (ASCL) union has said the lack of guidance is “frustrating” as teachers are having to navigate the “complex and sensitive subject” of gender identity on their own.

In March, Prime Minister Rishi Sunak pledged that guidance for schools on transgender issues would be published “for the summer term”. Mr Sunak has said it is “important” to take the time to get the guidance on transgender pupils right as it is a “complex and sensitive issue”.

Ms Keegan told ITV’s Peston programme: “We are working on the guidance and we were hoping to get that out but it is going to take us a little bit longer. It is confusing, by the way, and we know that people are confused – it’s why we committed to do the guidance in the first place.”

The Education Secretary mentioned it should state that youngsters shouldn't change gender ID with out colleges having a dialog with mother and father. She mentioned: “Yes, we think parental consent is really very important in this."

The minister made clear they favour issuing guidance rather than a law change because “guidance is quicker than legislation”. Reports in The Times have steered the Attorney General and Government attorneys mentioned plans to strengthen steerage can be illegal, which might imply the publication of the steerage is delayed.

Geoff Barton, the overall secretary of the ASCL, criticised the delay. Mr Barton mentioned: “We’ve been telling the Government that schools and colleges need clear guidance on provision for transgender and gender-questioning pupils for the past five years, so it is frustrating that it has now got to the point of producing something but appears to be locked in an internal political squabble which is causing a further delay.

“At present, schools have to navigate this complex and sensitive subject entirely on their own. Clear, practical guidance on this matter is important as long as it is genuinely supportive to schools and pupils and does not add to the existing and onerous expectations on schools.”

A report by the centre-right assume tank Policy Exchange, revealed in March, steered a variety of secondary colleges should not informing mother and father as quickly as a toddler questions their gender identification. It steered that safeguarding rules are being “routinely disregarded in many secondary schools” in terms of gender identification.

Mr Sunak advised broadcasters on Wednesday: “This is a really complex and sensitive issue because it affects the wellbeing of our children. And it’s important that we get it right, given those complexities and sensitivities.

“I’m committed to bringing forward that guidance but I want to make sure that we take the time to go through it properly.”

The Prime Minister’s official spokesman mentioned “more evidence” is required earlier than publishing the steerage on transgender pupils, however he declined to say whether or not ministers would change the regulation alongside the brand new steerage.

A spokesman for the Attorney General’s workplace mentioned: “By longstanding convention, reflected in the Ministerial Code, whether the law officers have been asked to provide legal advice and the content of any advice is not disclosed outside Government without their explicit consent. That consent is rarely given.”