: We are gladly taking new applications for membership to the Vapor Room Cooperative. You can now join our Cooperative online by CLICKING HERE to reach our New Member Registration Form and follow the instructions. You can also choose instead, to fax us your Therapeutic Cannabis Recommendation (TCR) and proof of CA residency at 415 813 5434. A VRC Staff Member will contact you once we’ve verified your TCR with your doctor’s office. To become a member of the Vapor Room Cooperative you must have a valid, written California Doctor’s Recommendation for therapeutic cannabis use (TCR), and valid California identification or proof or California residency. We strongly recommend that you also obtain the State of California medical cannabis verified ID card from the State Department of Health Services.