Montana State Legislature

Montana State Statutes

After a bill is signed by the governor or passed by the Legislature over the governor’s veto, it is incorporated into the Montana Code Annotated(MCA). This is a compilation of the Montana State Constitution and all state laws, also called statutes. It is updated after each legislative session.

View the 2023 MCA

To view previous versions of the MCA, please select the desired year from the dropdown.

Purchase/View MCA Materials

The MCA may be purchased in its entirely, by volume, or by title. In addition, there are other publications that provide more information about the laws passed during a session; the Laws of Montana (session laws) and the History and Final Status of Bills and Resolutions.

MCA Publications

View Supplementary Materials

Background materials relating to the Montana statutes, including pertinent official comments, amendment summaries, case notes, references to administrative rules, digests of Attorney General's opinions, and citations to law review articles, bar publications, and legal encyclopedias.

Annotations to the MCA

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