Schedule an appointment: https://www.redcrossblood.org/give.html/drive-results… EMERGENCY NEED for Type O Blood. All type O donors who come to give blood June 20 – July 31 will receive a BONUS $20 e-gift card to a merchant of their choice or make a Power Red donation (if eligible) and get $25 instead! Blood donors must be at least 16 years old to donate blood. 16-year-old blood donors need a parents permission slip.