The EPA recently announced a proposal to designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), two of the most widely used PFAS chemicals, as hazardous substances. This action is meant to spur the cleanup of dozens of sites where these chemicals have been dumped. It includes reporting requirements so communities can take steps to reduce exposures to these substances. Being listed as hazardous substances by the EPA makes it easier for the government to compel polluters to foot the bill for cleaning up contaminated sites. Read more.