evidence: Social media users have claimed that Project 2025, an initiative launched by the conservative think tank The Heritage Project, will introduce compulsory "period passports" to track women's menstrual cycles. [...] A user on X (formerly Twitter) on July 7 shared: "BREAKING: The Project 25 group says women should be mandated to carry "period passports" that track their menstrual cycles and must be kept up to date, and women must present these to police officers during random ID checks to monitor pregnancies." The archived version of this post and similar claims on X can be found here and here, and on Facebook, they can be found here and here. [...] The claim that Project 2025 would mandate period passports originated from a satirical social media account. The Project 2025 policy agenda does not make any reference to period passports or menstruation. Therefore, we have marked this claim as false.