What action should be taken before transporting a boat after a day on the water?

The correct action to take before transporting a boat after a day on the water is to complete the 'Clean, Drain, Dry' routine. This procedure is critical for preventing the spread of aquatic invasive species (AIS). By cleaning the boat, you remove any plants, mud, or debris that may be clinging to the boat or trailer. Draining all water from the bilge, livewells, and any other compartments reduces the risk of transporting non-native species that may be present in the water. Finally, drying the boat ensures that any remaining organisms do not survive the journey to a new water body, where they could disrupt the local ecosystem.

Taking this action is essential for maintaining healthy aquatic environments and adhering to regulations aimed at controlling the introduction of invasive species. While checking tire pressure, removing fishing gear, and inspecting for minor damages are important steps in preparing a boat for transport, they do not directly address the critical issue of AIS prevention. Therefore, the 'Clean, Drain, Dry' routine is the most essential and responsible action to take.