Operators of recreational vessels less than 26 feet in length will be required to use an engine cut-off switch (ECOS) and associated ECOS link (ECOSL) as of April 1, 2021, as the U.S. Coast Guard implements a law passed by Congress. The ECOS and ECOSL prevent runaway vessels and the threats they pose. The ECOSL attaches the vessel operator to a switch that shuts off the engine if the operator is displaced from the helm.