Wyo. Stat. § 31-2-406
In the event of loss, mutilation or destruction of any resident or nonresident snowmobile certificate issued pursuant to this act, or numbered decal, the owner of a snowmobile may obtain a duplicate certificate or a new numbered decal from any selling agent or any authorized department of state parks and cultural resources employee upon filing an affidavit showing the loss, mutilation or destruction of the original certificate or numbered decal and paying a fee of one-half (1/2) of the applicable current registration or user fee. The selling agent shall forward to the division of parks and historic sites within the department one-half (1/2) of the applicable current registration or user fee minus one dollar ($1.00) of each duplicate certificate fee to be deposited to the general fund.
It is unlawful for any person to willfully alter or mutilate any certificate or numbered decal.
W.S. 31-2-406