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For decades, per- and polyfluoroalkyl substances (PFAS), a group of several thousand synthetic compounds, have been viewed as "wonder chemicals" and their unique properties made them...

On January 14, 2021, on the eve of President Biden's inauguration, EPA issued an advance notice of proposed rulemaking, seeking comment on whether PFOA and PFOS

I was surprised to see a former EPA official opining that identifying two of the hundreds of forever chemicals known collectively as PFAS as "hazardous substances" under Federal law...

On October 23, 2025, the Senate Environment and Public Works Subcommittee on Chemical Safety, Waste Management, Environmental Justice, and Regulatory Oversight held a hearing...

The release of a discussion draft to amend the Toxic Substances Control Act (TSCA) offers an early window into how chemical policy may evolve in Congress, even as the legislative path forward remains uncertain.

Roughly eight months have passed since California's Office of Environmental Health Hazard Assessment (OEHHA) last proposed to amend its Prop 65 regulations...

Almost a year after initially proposing revisions that would substantially curtail use of the popular "short form" warnings under Proposition 65 (see my prior blog post for more details)...

Lara Beaven of Inside EPA reports that the House Appropriations Committee intends to give EPA every dollar it has requested to implement its ambitious and wide-ranging plan for addressing the ubiquitous "forever" chemicals known collectively as PFAS.

The U.S. Environmental Protection Agency has published the draft Sixth Contaminant Candidate List, introducing microplastics and pharmaceuticals as priority contaminant groups for the first time in drinking water regulation.

The EPA has released its first public list of Confidential Business Information claims under TSCA that are set to expire between June and July 2026, marking a significant shift in chemical information transparency. Companies have just 30 days before expiration to request extensions through EPA's new CDX tool, or risk having their proprietary information disclosed to the public.

On March 10, 2025, the U.S. Environmental Protection Agency (EPA) announced its intent to reconsider the May 3, 2024, rule amending the procedural framework rule for conducting risk evaluations...

Concerns about microplastics and their effect on human and environmental health are no longer confined to academic literature or environmental advocacy. On April 6, 2026, the U.S. Environmental Protection Agency (EPA)...

The Ninth Circuit reminded us that TSCA has teeth—and those teeth may apply to the world of recycling, disposal, wastewater, and biosolids. On May 13, 2026, the Ninth Circuit remanded the U.S. Environmental...

Supreme Court Justice Louis Brandeis famously exclaimed sunlight is said to be the best of disinfectants. Of course the Atlanta Journal-Constitution and the Rome News-Tribune endorse that proposition.

The U.S. Environmental Protection Agency has released its draft sixth Contaminant Candidate List under the Safe Drinking Water Act, marking a significant regulatory development by including microplastics...

As we await final agency action on U.S. EPA's pending rulemaking to designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as CERCLA...

To complicate matters, the export notification obligation does not apply solely to exports of bulk chemicals.

On 14 August 2019 the U.S. Department of Commerce published a proposed change to the list of "Schedule 1" chemicals in the "Annex on Chemicals" to the Chemical Weapons Convention (CWC).