Found this....
Maryland Residents: Maryland currently has no reciprocity agreements with other states to honor Maryland's medical marijuana patients. This includes even those states that currently have medical marijuana laws of their own. However, in Montana, medical marijuana patients from other states who are valid medical marijuana patients under that state's law are protected under Section 4(
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of the Montana Medical Marijuana Act [Sec. 50-46-201(
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, MCA]. A registry identification card or its equivalent issued by another state government to permit the medical use of marijuana by a qualifying patient or to permit a person to assist with a qualifying patient's medical use of marijuana has the same force and effect as a registry identification card issued by the Department of Public Health and Human Services in Montana. Therefore, medical marijuana patients from Maryland should be protected in Montana under Montana state law. See the
Montana Patients Guide for details on the protections and limitations that Montana state law affords medical marijuana patients.
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The reciprocity clause of the Rhode Island Medical Marijuana Act protects patients from any medical marijuana state who are in Rhode Island and have their documentation with them. This means that patients from Alaska, California, Colorado, Hawaii, Maine, Michigan, Montana, Nevada, New Mexico, Oregon, Vermont, and Washington, who are in possession of a medical marijuana license, may possess up to 2.5 ounces of medical marijuana in the state of Rhode Island. However, to participate in the RI Medical Marijuana Program by appointing a caregiver, these patients would need to become RI patients by obtaining a RI
medical marijuana license from the RI Department of Health.
Michigan and Montana also both have this reciprocity clause, so Rhode Island's patients are legally protected for possessing and using medical marijuana in those states. In November 2009 Maine will vote on adding reciprocity to their law, which would protect Rhode Island patients within the state of Maine.
FOR MORE INFO on the laws of all 13 medical marijuana states, please see
Americans for Safe Access.