Frequently asked questions Is a Minnesota Medical Marijuana Certificate valid in other states? Some states accept out-of-state Medical Marijuana Cards. This is called reciprocity. However, as Minnesota does not have a medical marijuana identification card system, it is difficult to see how reciprocity will be possible with the exception of states like Hawaii and Illinois, where medical marijuana patients from other states can apply and provide an identification number. The following states accept out-of-state medical cannabis cards: – Alaska ^ – Arkansas * – California ^ – Colorado ^ – Hawaii * – Maine – Massachusetts – Michigan – Nevada – Oklahoma * – Oregon ^ – Rhode Island – Washington ^ – Washington D.C. States marked with * require visitors to complete a visiting patient application for the duration of their stay. States marked with ^ have adult use programs but do not accept out of state cards.