Drive to the ramp and observe the directional signage.
Back the boat and trailer down the appropriate ramp.
Keep the rear wheels of the tow vehicle out of the water. This will generally keep the exhaust pipes out of the water. If the exhaust pipes become immersed in the water, the engine may stall.
Set the parking brake and insure the transmission is in park.
Lower the motor and prepare to start the engine (after running blowers and checking for fuel leaks).
Start the boat motor and make sure that water is passing through the engine cooling system.
Release the winch and disconnect the winch line from the bow when the boat operator is ready.
At this point, the boat should launch with a light shove or by backing off the trailer under power.
Return the towing vehicle and trailer to the parking lot as soon as the boat is launched so the next person in line may proceed.
Finish any final loading of your boat at the transient mooring float, away from the launch ramp so that others may continue to use it.