All out-of-state boats
and resident boats that go out-of-state and return
to Colorado must pass a state-certified inspection
for zebra mussels and other aquatic nuisance species prior to launching in any Colorado lake, reservoir or waterway. In addition, boats that have launched on any of the Colorado lakes or reservoirs where mussels have been detected must pass an inspection
before launching at a new location. See the Mandatory Boat Inspections page
for complete details.
Zebra and quagga mussels are small, non-native barnacle-like mollusks with dark and light colored stripes. They damage equipment by attaching to boat motors or hard surfaces and clog water treatment facilities.
Public awareness and participation is the best weapon in the containment of invasive species. Boaters are reminded to take the simple precaution of making sure that they Clean, Drain, and Dry their boat when they leave the lake.