The Scottish FA is set to ban transgender women from competing in women's football, according to a report. The organisation is believed to be updating its gender policy days after the UK Supreme Court announced that the Equality Act's definition of a woman is based on biological sex. It means that from next season, only those born biologically female will be allowed to take part in competitive matches in the women's game in Scotland. Currently, transgender women are allowed to compete in their affirmed gender category on a case-by-case basis, with testosterone levels also taken into account. The BBC reports that the new policy will apply to all competitive football in Scotland, including the grassroots game from under-13s and over. It is understood there are currently no transgender women playing competitive football north of the border. The revised policy was given the go-ahead at a recent board meeting but discussions aimed at updating the current guidelines had been ongoing for some time. The SFA rule change will see the governing body bring football into line with other sports like rugby, swimming and athletics. Earlier this month, the UK Supreme Court made the "unanimous decision" to define the terms "woman" and "sex" to biological woman and biological sex. Announcing the ruling, Judge Hodge said: "As I shall explain later in this hand down speech, the Equality Act 2010 gives transgender people protection, not only against discrimination through the protected characteristic of gender reassignment, but also against direct discrimination, indirect discrimination and harassment in substance in their acquired gender." He added that issues relating to pregnancy and maternity can only be interpreted as referring to biological sex , while other parts of the Equality Act refers to "certificated sex" as well. In the 88-page judgement, Lord Hodge, Lady Rose and Lady Simler concluded: “The definition of sex in the Equality Act 2010 makes clear that the concept of sex is binary, a person is either a woman or a man. “Persons who share that protected characteristic for the purposes of the group-based rights and protections are persons of the same sex and provisions that refer to protection for women necessarily exclude men . “Although the word ‘ biological ’ does not appear in this definition, the ordinary meaning of those plain and unambiguous words corresponds with the biological characteristics that make an individual a man or a woman. “These are assumed to be self-explanatory and to require no further explanation. “Men and women are on the face of the definition only differentiated as a grouping by the biology they share with their group.” The Daily Record has approached the SFA for comment.