Since 1983, the FDA has banned gay and bisexual men from donating blood. The ban was instituted shortly after the start of AIDS and officials say it has been left in place since that time.

Gay or bisexual men will not be allowed to donate at the events. Instead, eligible donors are being asked to give in their place in what officials say is a way of showing how many more blood donors could be available if the ban were to be lifted.

In the Pittsburgh area, Studio Raw, a hair salon, will be holding a drive on Monday afternoon.