The NAS Committee made several recommendations for future research, noting that sufficient data now exists to move forward with the regulatory process. Since the NAS report, multiple studies have filled the few data gaps identified by NAS and have confirmed the NAS conclusions.
In July 2020, under the first Trump Administration, U.S. EPA made a determination under the Safe Drinking Water Act that that perchlorate did not merit additional federal regulation. That determination was subsequently upheld in 2022 under the Biden Administration.