Who is able to donate cord blood?

In theory, any expectant mother who passes the medical screening is eligible to donate.  In practice, the biggest hurdle faced by families who wish to donate is finding a bank to accept their donation.  There are only about 200 hospitals in the US that collect cord blood donations from births, and most of them require you to register for donation weeks ahead of the birth.  The handful of programs that accept mail-in donations are opening this opportunity to the rest of the American public.