A report by the National Academies of Sciences, Engineering, and Medicine (NASEM), released in May 2019, rejected a single class approach to assessing the potential hazards of organohalogen flame retardants (OFRs). The findings confirm what scientists, regulators, and other authoritative bodies have already determined: it is not scientifically accurate or appropriate to make broad conclusions or impose a one-size-fits-all regulatory approach for OFRs.