consumption and improper lookout. The engine and propeller of an airboat are enclosed in a protective metal cage that prevents objects, such as tree limbs, branches, clothing, beverage containers, passengers, or wildlife, from coming into contact with the whirling propeller, which can cause traumatic injury to the operator and passengers or devastating damage to the vessel. Safety cages do not always work perfectly, however: people have had their fingers sliced off by airboat propellers, and tree branches entering safety cages have wrecked airboat propellers and sprayed the operators and passengers with woodchips and other shrapnel. Airboats are prone to capsizing and sinking because they are top-heavy, unstable, and extremely shallow draft. This makes them especially dangerous on the open sea or in rough or stormy conditions. Airboats with a "long-belt gear reduction drive unit" and an automobile engine avoid these risks because the long belt allows for the engine to be mounted inside the hull, which lowers the center of gravity and lowers the capsizing risk. Some companies and organizations, including Airboat West and the Los Alamos National Laboratory, have built airboats with low centers of gravity for use in windy or rough conditions or in rescues with obstacles like low-hanging power lines. Airboats can also be equipped with autoinflation devices, similar to car airbags or autoinflating personal life vests, that can reduce the risk of capsizing. In 1999 the U.S. Fish & Wildlife Service's National Conservation Training Center, located in Shepherdstown, West Virginia, produced a 70-minute training video entitled Airboat Safety – Design-Operation-Maintenance in cooperation with the U.S. Army Corps of Engineers in Jacksonville, Florida. The video includes an early history of airboats and interviews with two airboat manufacturers in Florida. It was considered to be the only airboat video of its kind when it was made and may still be the only one with the range of airboat subject matter ever produced in the US. Since it was produced by the federal government of the United States, it is in the public domain. Five hundred copies of the video were produced. Regulation On March 30, 2018 Gov. Rick Scott of Florida signed “Ellie’s Law,” which requires operators to complete CPR instruction and a course on airboats run by the state's wildlife commission. The law is named after Elizabeth “Ellie” Goldenberg, who died from an airboat accident in Miami-Dade County the day after her graduation from college. Beginning July