 but some of them could be challenged, and I think they could be thrown out as a result of Chevron. Grassley adds that the Supreme Court ruling is a slap at Congress that lawmakers need to write laws that are more specific. NCBA's Hart complains that Chevron allowed the Environmental Protection Agency to reinterpret Congress's vague WOTUS statute 14 times. The Supreme Court finally stepped in and said enough. Directing a wetland must have an observable connection to navigable waters before the EPA could require a permit for its use.