Mont. Code § 75-10-534
The department shall pay to a county the amount of the approved junk vehicle collection and graveyard budget of the county. The yearly payment may not exceed $1.40 for each motor vehicle under 8,001 pounds gross vehicle weight that is licensed in that county. However, for those counties that have fewer than 5,000 motor vehicles under 8,001 pounds gross vehicle weight, the department may pay up to $7,500 if the county can justify this payment. Counties realizing revenue from the sale of junk vehicles shall return to the state junk vehicle program revenue account money equal to the salvage value of each vehicle sold. The salvage value of a vehicle must be the average contract value of a crushed ton of junk vehicles as determined by the statewide salvage bids received by the department during the current fiscal year. Any additional revenue realized from the sale of junk vehicles may be retained by the county for use in the county's junk vehicle program in addition to the approved junk vehicle collection and graveyard budget of the county.
§ 75-10-534, MCA