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Mobile Machinery
Defining Mobile Machinery
Mobile machinery is defined as heavy equipment, except shop or hand tools, which are self propelled, towed, or hauled and used primarily in construction and maintenance of roads, bridges, ditches, buildings, or land reclamation.

Mobile Machinery Registration Requirements
If operating mobile machinery in Sweetwater County, you must register your equipment with a mobile machinery sticker, purchased at the County Treasurer's Office:
80 W. Flaming Gorge Way
Suite 139
Green River, WY 82935

Wyoming contractors are required to list such equipment upon the tax rolls, as well as an annual purchase of a mobile machinery sticker. Out-of-state contractors may obtain registration for any period of less than 12 months. All machinery brought into the State of Wyoming must be registered. Exemptions apply only to demonstrate the operation of equipment to prospective buyers, not to exceed a period of seven calendar days.

Contact Us
For additional information about mobile machinery registration, please contact us at (307) 872-3720 or (307) 922-5402.