Wyo. Stat. § 31-2-408: Exemptions.

(a) The following snowmobiles are exempt from W.S. 31-2-401 through 31-2-407:

(i) Mobile track-laying units;

(ii) Snowmobiles used solely for business and agricultural purposes; and

(iii) Nonresident snowmobiles, except to the extent a nonresident snowmobile meets the qualifications and requirements set forth in W.S. 31-2-402(e);

(iv) Snowmobiles used exclusively on private land.

(b) This section does not exempt snowmobiles which are leased or rented for hire as commercial snowmobiles as defined under W.S. 31-2-401(a)(i).