The UK’s Supreme Court has ruled that “man”, “woman” and “sex” in the Equality Act 2010 refer to sex, not self-ID or paperwork (gender-recognition certificates). This agreed with our legal interpretation. We have published new guidance and are in the process of updating our publications to reflect the judgment. We are also working to provide answers to the questions we're hearing from supporters and the media. We will publish these as soon as possible.

Should Transwomen be allowed to Compete in Women’s Sports? A view from an Exercise Physiologist

By Gregory A. Brown Ph.D., Professor of Exercise Science, Physical Activity and Wellness Laboratory, Department of Kinesiology and Sport Sciences, University of Nebraska Kearney, and Tommy Lundberg Ph.D., Assistant Senior Lecturer, Department of Laboratory Medicine, Division of Clinical Physiology, Karolinska Institutet, Stockholm, SWE