Since this has come up in a few threads, to avoid derailing them here is a new Oz-specific thread.
The key document to note is the federal Sex Discrimination Act. https://www.legislation.gov.au/Details/C2014C00002
Within that, Clause 42(1) makes it clear that single sex sport is allowed.
42 Sport
(1) Nothing in Division 1 or 2 renders it unlawful to discriminate on the ground of sex, gender identity or intersex status by excluding persons from participation in any competitive sporting activity in which the strength, stamina or physique of competitors is relevant.
In addition, Clause 39 allows for single sex and/or orientation-specific voluntary bodies.
39 Voluntary bodies
Nothing in Division 1 or 2 renders it unlawful for a voluntary body to discriminate against a person, on the ground of the person’s sex, sexual orientation, gender identity, intersex status, marital or relationship status, pregnancy, breastfeeding or family responsibilities, in connection with:
(a) the admission of persons as members of the body; or
(b) the provision of benefits, facilities or services to members of the body.
anyone who tries to say different is lying about Australian law – and yes, Kieran Perkins, I’m looking at you. After our World Cup loss just now, believe me, everyone in this country knows what a woman is, and knows what a lesbian is.
what does this mean for the Tasmanian case? Tasmania is the one state where sex has been replaced with “gender” (and separately “gender identity”) in its anti discrimination legislation. The request for an exemption was almost designed to be rejected. In any other state, single sex sporting events, swimming events and organisations don’t get exemptions because they don’t need them. But it seems to me that federal law would override Tasmanian law if someone took it to the High Court (that said, IANAL).
if there is interest I will summarise other state legislation in subsequent posts.