Mont. Code Ann. § 1-11-303

The code commissioner may issue supplementary and ancillary publications as necessary or desirable in aid of the general use and purposes of the Montana Code Annotated and the supplements or replacements to the Montana Code Annotated. The code commissioner shall publish a legislative review containing a summary of enactments of each session of the legislature. The code commissioner shall publish a history and final status of all bills and resolutions of each session of the legislature that contains corrected voting records for bills and resolutions.