89 FR 33232
SIP Approval: New Hampshire (amendments to motor vehicle inspection and maintenance program regulation).
89 FR 32387
EPA proposed to approve a CAA §111(d)/129 state plan submitted by South Carolina for implementing and enforcing the emissions guidelines applicable to existing commercial and industrial solid waste incineration units.
89 FR 32532
EPA finalized national primary drinking water regulations for six per- and polyfluoroalkyl substances (PFAS): perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid (HFPO-DA), and perfluorobutane sulfonic acid (PFBS); the Agency also finalized a Hazard Index of 1 as the maximum contaminant level goal and maximum contaminant level for any mixture containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS.