Can I register for marijuana card for another person?

No, but you may register for a card with the other person especially if that other person needs help with registration or purchase of the cannabis medication, then you can help by being at that person's bedside to help register that person, participate in the office visit with the doctor and help with potential acquisition and administration of the medicationIn order to help the other person. You will not be allowed to register for a card for another person without that person being present, however.