Users can add their donor status to their profile or timeline page. They can also enroll as an organ donor via links to official registries.
Facebook CEO Mark Zuckerberg says among other things. His friendship with the late co-founder of apple steve jobs, who had received a liver transplant, helped him come up with the idea.
The Department of Health and Human Services says more than 114 thousand people are waiting for a transplant. Facebook has more than 900 million users.