As announced in the Effluent Guidelines Program Plan 15 at 88 FR 6258 (January 31, 2023), the EPA is revising the Landfills Effluent Limitation Guidelines at 40 CFR part 445 to address discharges of per- and polyfluoroalkyl substances in wastewater from landfills. The existing effluent guidelines do not include pretreatment standards or limitations on any PFAS. The EPA identified landfills as a significant source of PFAS during the EPA’s detailed study of the landfills industry. The EPA has gathered enough data to support a decision to initiate a rulemaking to revise the existing effluent guidelines for the landfills point source category to address discharges of PFAS and other pollutants in their wastewater.