text:  Atlantic herring fishermen in New Jersey and Rhode Island were told by the National Marine Fisheries Service to pay for government observers to monitor their fish intake on their boats. So the fishermen sued over the cost. Lower court sided with the federal government, citing a 1984 decision known as Chevron. Chevron says if regulations were left fuzzy or unclear by Congress, then things can be left up to the federal agency to interpret and enforce the rules.