There are two aspects to the State of Maine's Medical Use of Cannabis Program (MMCP): statute and rule. The Medical Use of Cannabis Act currently appears in Title 22, Chapter 558-C of the Maine Revised Statutes.

Rules are implemented by state agencies to build upon existing law and provide a shared understanding of how a regulatory agency interprets statutory language.

There are various aspects of the rulemaking process that OCP undertakes. Some of these are formal and required by the Maine Administrative Procedures Act, while others are informal and used to gather input to further inform the work of OCP. Ongoing rulemaking activity of the Office (proposed and provisionally adopted) can be found in the related links.