I am looking at the wording on the "Annual ANS Stamp - Colorado Resident Vessels* "
* Vessels registered in the state of Colorado, or Colorado resident motorboats or sailboats documented by the U.S. Coast Guard or otherwise exempt from in-state registration.
That asterisk includes all vessels "otherwise exempt from in-state registration". I suspect that means they now want a $25 fee to put your kayak, float tube, canoe, etc on the water.