When you receive your 2014 boat registration from DMV you will also receive sticker like the one shown above. The 2015 Mussel Fee is paid to the State of California to fund research and prevention programs. It DOES NOT replace the San Luis Obispo and Monterey County requirement that all vessels entering our lakes be inspected and determined to be mussel free before being allowed to launch. Do not launch without an inspection. It will cost you a $2000 fine.