PFAS, the so-called “forever chemicals”—have been under the regulatory microscope for years. PFAS stands for per- and polyfluoroalkyl substances. These are a large class of human-made chemicals that are resistant to water, oil, and heat. They are persistent in the environment and in human bodies (hence the nickname “forever chemicals”). In April 2024, EPA finalized the first nationwide drinking-water standards for several PFAS under the Safe Drinking Water Act (SDWA). In 2025, the agency—now under new leadership—floated rollbacks for parts of that package, including plans to rescind standards for certain newer PFAS and to extend deadlines for compliance.