The Center for Biological Diversity (CBD) and Friends of the Earth (FOE) commenced the citizen suit process under the Clean Water Act by providing a legally-required notice of intent to sue the Environmental Protection Agency for failing to finalize nationwide standards to protect U.S. waterways from harmful vessel discharges. CBD and FOE argue that the discharges carry introduced species, pathogens, and other pollutants that pose serious threats to the nation’s waters, ecosystems, economy, and public health.