It looks like I need to update my post Cost of Paddling – Access to Local, County, State and Federal Waters. Wyoming Game and Fish Department requires now Aquatic Invasive Species decal:

Based on direction from the Wyoming legislature, the Wyoming Game and Fish Commission has implemented emergency regulations to address the aquatic invasive species threat. Under this regulation, all watercraft using Wyoming waters are required to display an Aquatic Invasive Species decal. Costs for the decal under the emergency regulations are $10 for motorized watercraft registered in Wyoming, $30 for motorized watercraft registered in other states, $5 for non-motorized watercraft owned by Wyoming residents and $15 for non-motorized watercraft owned by non-residents. Inflatables 10 feet or less in length are exempt. Decals go on sale on the WGFD website April 15 and at license agents May 17.

I paddle in Wyoming only a few times per year, mostly, on the North Platte River. If I need to pay for that sticker I will probably visit Wyoming more often to justify this extra cost. And, there are plenty of paddling opportunities there.

Related posts and resources:
Zebra and Quagga Mussel Distribution in U.S. Lakes
Paddle and Portage: The Floater's Guide to Wyoming Rivers
Paddling Yellowstone and Grand Teton National Parks
Bennett Peak to Pick Bridge on the North Platte River, Wyoming - my last year paddling in Wyoming with more links related to the North Platte River