A mob of menstruation activists descended on the Education Department headquarters this week to demand justice for bleeders through a list of demands for K-12 schools.

Students with the group Period and others fighting for “menstrual equity” directed their angst at Education Secretary Betsy DeVos Monday to demand comprehensive education about periods for both genders by age 12, as well as free menstrual products for anyone who wants them, NOLA reports.

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The roughly 40 students and a handful of adults donned matching yellow beanies, hoisted protest posters, and chanted slogans like “Hey hey! Ho ho! Period poverty has got to go!” as they presented Education Secretary Betsy DeVos with over 35,000 signatures of support for their cause on Monday, capping off a weekend of menstrual justice at Period Con in New York, according to the news site.

Period Con is a gathering of menstruation activist students from high schools and colleges across the country who spend two days in workshops and panels discussing ways to “shatter stigma associated with menstruation.” The event is sponsored by Period, a student group started in 2014 that now has hundreds of chapters.

In addition to protesting the Department of Education, Period activists are demanding lawmakers in state legislatures exempt menstruation products from sales tax. The most hardcore menstruation activists also apparently hold “freebleeding” protests.

“PERIOD is a globally youth-run organization that provides and celebrates menstrual health through service, education, and advocacy. Since its founding in 2014 by Nadya Okamoto and Vincent Forand, at the age of 16, PERIOD has grown to be the largest youth-run NGO in women’s health, and one of the fastest growing ones in the United States,” according to the group’s website.

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“The PERIOD network has addressed almost 400,000 periods through product distribution to menstruators in need, and registered over 230 campus chapters at universities and high schools around the US and abroad.”

Period refers to “menstruators” rather than women because some women identify as men, but also menstruate.

The Period Con featured several panel discussions on issues including “Period Poverty,” “Periods in Pop Culture,” “Period Policy,” “Gender Inclusivity,” and “Period Care Innovation,” according to the Period Con Playbook.

The so-called “Menstrual Movement” is sponsored by the manufacturers of tampons and pads.

Activists in D.C. argued that low-income students can struggle to gain access to the products they need to control menstruation, in part because of an alleged stigma about the subject. A survey conducted by Always last year contends period problems convinced at least one in five girls in the U.S. to leave school early or stay home, NOLA reports.

“When you don’t have access to period products, you don’t talk about it – you just grumble and deal with it,” Okamoto told the crowd.

“We need to spread the word,” added fellow activist London Vallery, an 18-year-old at Harvard. “Once people learn more about period poverty, they will understand menstruation is a health issue, not a luxury.”