Reciprocity

States that offer reciprocity allow visiting patients to present their home state medical card (and sometimes additional documentation) at local dispensaries to make purchases. Policies vary: some states offer full reciprocity with purchase limits matching resident patients, while others impose lower limits or restrict purchases to certain product types. Common reciprocity states include Oklahoma, Arkansas, Missouri, and Maine, though the list changes as laws evolve.

Reciprocity does not exist at the federal level, and many states do not offer it at all. Even in states with reciprocity, there can be complications: some require registration with the visiting state before purchasing, others limit reciprocity to patients from specific states, and interstate transport of cannabis products remains federally illegal regardless of state-level reciprocity. For traveling patients, researching the specific reciprocity rules of their destination state before the trip is essential. The patchwork nature of cannabis reciprocity reflects the broader complexity of state-by-state cannabis regulation in the absence of federal policy.