Mont. Code Ann. § 50-15-409
List of deaths to be made by department -- copy to county clerk
50-15-409 . List of deaths to be made by department -- copy to county clerk. The department shall prepare on or before the fifth of January, April, July, and October of each year a list of all deaths, together with the date of the death, reported to it during the period and shall send a copy of the list of deaths to the county clerk of each county in the state.