In June 2015, EPA and the Corps of Engineers released a draft rule to define “waters of the United States,” affectionately referred to as WOTUS. This definition goes to the scope of federal jurisdiction over wetlands and other waters that are not obviously free flowing and navigable. An in-depth analysis of the rule can be found here.
Safe to say the rule hasn’t exactly played to rave reviews. It attracted over a million comments, mostly negative from those who think the rule represents gross government overreach, and others who believe the rule is not protective enough. The rule is also the subject of multiple challenges around the country, some filed before the rule was officially released. The lead case is now pending before the Sixth Circuit Court of Appeals.