The U.S. Environmental Protection Agency (EPA) has formally withdrawn cybersecurity rules it promulgated in March requiring that states report cybersecurity threats to their public water systems (PWS). The reversal comes in the wake of lawsuits filed in the Eighth Circuit in July by Missouri, Arkansas, and Iowa (the states), along with intervenors American Water Works Association and National Rural Water Association (the water associations). As a result of the withdrawal, the states and water associations filed to dismiss their suits.