
EPA Eliminates LVE And LoR Exemptions For PFAS And PBT Chemicals
The EPA’s new rules eliminate exemptions for PFAS and PBT chemicals, ensuring comprehensive safety reviews before manufacturing. These reforms prioritise public health, streamline compliance, and support innovation in key industries, marking a significant milestone in chemical safety regulation.
Published in December 2024. Dates, deadlines and stages may have changed since.
2 min readAI-drafted, expert reviewed

The U.S. Environmental Protection Agency (EPA) has implemented sweeping reforms to its chemical review process under the Toxic Substances Control Act (TSCA). Effective immediately, the updated regulations aim to strengthen public health protections by eliminating exemptions for per- and polyfluoroalkyl substances (PFAS) and persistent, bioaccumulative, and toxic (PBT) chemicals. These changes align with the 2016 Frank R. Lautenberg Chemical Safety for the 21st Century Act and include comprehensive safety evaluations, stricter review requirements, and improved efficiency in the submission process.
Comprehensive Reforms Target PFAS And PBT Risks
The reforms categorically remove low-volume and low-release exemptions (LVE and LoREX) for PFAS and PBT chemicals, substances that have been flagged for their potential long-term health and environmental hazards. PFAS, often referred to as "forever chemicals," are notorious for their persistence in the environment and association with severe health risks. This move aligns with the Biden-Harris Administration’s PFAS Strategic Roadmap, which seeks to confront these chemical risks more aggressively.
Enhanced Review And Submission Processes
Under the updated rules, manufacturers must now comply with stricter requirements when submitting premanufacture notices (PMNs), significant new use notices (SNUNs), and microbial commercial activity notices (MCANs). The EPA is required to deliver one of five possible safety determinations for all chemical submissions before production can begin, addressing gaps in pre-2016 regulations where many chemicals bypassed formal safety reviews.
To streamline compliance, the EPA has introduced new prescreening processes and automated tools to prevent incomplete submissions. These measures will reduce delays caused by insufficient data and enable faster, more accurate risk assessments.
Innovation With Safety In Focus
The EPA’s reforms also promote innovation, particularly in critical industries such as semiconductors and renewable energy. Chemicals used in these sectors will receive expedited review under the agency’s prioritization framework. Additionally, the reforms underscore the EPA’s commitment to environmental justice by assessing the risks posed to vulnerable and disproportionately impacted communities.
Economic And Operational Impacts
The elimination of exemptions for PFAS and PBT chemicals demonstrates the EPA’s commitment to prioritizing health and environmental safety over convenience. While the updates impose additional compliance costs on manufacturers, the EPA estimates an annual cost saving of over $1 million for the agency itself, highlighting the long-term benefits of these reforms.
Questions about this change
Why has the EPA eliminated LVE and LoREX exemptions for PFAS and PBT chemicals?
The EPA removed low-volume (LVE) and low-release and exposure (LoREX) exemptions for PFAS and PBT chemicals because these substances pose significant health and environmental risks. By eliminating these exemptions, the EPA ensures these chemicals undergo a comprehensive safety review process before manufacturing, preventing potential harm from "forever chemicals" and persistent toxins.
How do the changes to LVE and LoREX exemptions impact chemical manufacturers?
Manufacturers can no longer rely on LVE and LoREX exemptions for PFAS and certain PBT chemicals. Instead, they must submit a full premanufacture notice (PMN), which includes detailed data on chemical properties and potential exposure risks. This change extends the review process but ensures rigorous safety evaluations, protecting both public health and the environment.

Dr Steven Brennan
CEO and co-founder of Foresight, and a co-opted member of ECHA's Committee for Socio-economic Analysis. He holds a PhD in chemical engineering.
More from Dr Steven BrennanFind out what this means for your products
Foresight follows changes like this one and shows where they reach your substances, products and markets.
- TSCA reportingThe TSCA status of each substance you make in or import into the US, and when each report is due.
- PFAS portfolio reviewWhere PFAS sit in your products, under each definition that applies.
- Regulatory horizon scanningAlerts scored for your organisation, most important first.
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