EPA Proposes Exemptions to TSCA PFAS Reporting Rule
On November 13, 2025, the U.S. Environmental Protection Agency (EPA) published a proposed rule that would revise the scope of EPA’s Toxic Substances Control Act (TSCA) Section 8(a) rule requiring a one-time expansive data submission on per- and polyfluoroalkylated substances (PFAS Reporting Rule). The proposal introduces several exemptions designed to reduce compliance costs and improve implementation. The revisions aim to make the one-time PFAS reporting requirements more practical, particularly for small manufacturers and importers, while preserving EPA’s access to use and exposure information. EPA will accept public comments until December 29, 2025.
North Carolina Court Upholds Attorney General’s Common Law Authority to Pursue PFAS Suit
On August 7, 2025, the North Carolina Business Court denied a motion to dismiss in North Carolina v. E.I. Du Pont de Nemours, affirming the Attorney General’s authority to pursue environmental and fraud claims related to PFAS and GenX discharges. The court held that the Attorney General’s common law authority to protect state natural resources remains intact despite the North Carolina General Assembly’s prior repeal of a statute that had explicitly authorized such enforcement. As PFAS regulation continues to expand across the country, this decision, if followed, would signal that companies involved in PFAS discharge may face liability under common law theories—even in jurisdictions lacking PFAS statutes or where statutory enforcement authority has been rolled back.
EPA Updates Clean Air Act Standards Applicable to Small Waste Incinerators
On June 30, 2025, the U.S. Environmental Protection Agency (EPA) finalized updates to its New Source Performance Standards (NSPS) and Emission Guidelines for Other Solid Waste Incineration (OSWI) units under the Clean Air Act (CAA). These units — combustion systems that incinerate solid waste from commercial or institutional sources not otherwise regulated under specific incinerator categories — include very small municipal waste combustors and institutional incinerators. The final rule includes applicability-related and definitional changes expanding the class of incinerators subject to NSPS, revises the OSWI subcategories and tightens emission limits for key pollutants. It also adopts changes to startup, shutdown, and malfunction (SSM), and expands testing, monitoring, reporting, and recordkeeping requirements that will affect both existing and new OSWI units.
EPA Announces List of Manufacturers Subject to Fees for Chemical Substances Under the Toxic Substances Control Act
On December 31, 2024, the U.S. Environmental Protection Agency (EPA or the Agency) published a determination in the Federal Register announcing the availability of preliminary lists of manufacturers of five chemical substances designated as “High-Priority Substances” under Section 6 of the Toxic Substances Control Act (TSCA). The manufacturers — including importers — of these chemical substances will be subject to fees and reporting requirements under TSCA’s implementing regulations.
California Agency Proposes to List Microplastics and PPD derivatives to Candidate Chemical List
The California Department of Toxic Substances Control (DTSC) has proposed adding microplastics and PPD derivatives to its Candidate Chemicals List. This listing positions microplastics, and products containing them, for regulation and potential restrictions under the agency’s Safer Consumer Products Program. Companies with products containing microplastics and PPD derivatives should engage with DTSC in coming regulatory proceedings.
IRS Proposed Rule on Revived Superfund Chemical Taxes
On March 29, 2023, the U.S. Internal Revenue Service (IRS) published a Proposed Rule to amend the Environmental Tax Regulations, 25 C.F.R. part 52, specifically those provisions governing the chemical excise taxes used to fund the Hazardous Substance Response Trust Fund established pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA)—known as the Superfund Chemical Tax. Because this is the first time the tax will be applied in over 25 years, its effects may not be well understood by affected industry taxpayers, and the IRS’s Proposed Rule offers critical guidance. Companies engaged in the manufacturing, import, or sale of taxable chemicals should evaluate the Proposed Rule and consider submitting comments by the May 30, 2023, deadline.