EPA Chemical Review Backlog Stalled Domestic Production
Longer wait times for new substance approvals have pushed manufacturing projects to foreign markets through 2026.
Updated on Sept. 19, 2026 in Chemistry

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Should the EPA prioritize faster review processes for new chemicals to keep manufacturing in the U.S.?
As of September 1, 2026, the Environmental Protection Agency reported 421 pending new chemical notices. The median wait time for these reviews reached 469 days in the first quarter of 2026, significantly exceeding the 90-day statutory limit.
Why it matters
Extended federal review timelines have hampered domestic industrial scaling and forced chemical manufacturers to shift production to foreign jurisdictions. The resulting delays threaten the commercialization of new substances, including critical battery components.
The EPA completed 151 reviews in fiscal year 2026 while clearing only 19 new chemicals for sale without restrictions. This backlog follows a 25% turnover rate within the EPA chemicals office staff over the year preceding March 2026.
The players
Environmental Protection Agency
The federal regulator responsible for oversight of public health and environmental safety in the United States, managing the chemical inventory and pre-market notifications.
American Chemistry Council
An industry trade association representing chemical manufacturers and lobbying for regulatory reform regarding EPA review timelines.
Donald Trump
The President of the United States who signed legislation extending the authority of the EPA to collect manufacturer fees.
The details
Before manufacturing or importing substances not currently listed on the federal chemical inventory, companies must submit a notice for EPA assessment. The agency is required to evaluate these substances within 90 days to determine potential risks to public health or the environment. Due to resource constraints, current wait times have ballooned, leading to project cancellations and shifts in manufacturing to countries like France and China.
Timeline
March 4, 2026: A Senate committee held a hearing to discuss chemical review legislation.
September 1, 2026: The EPA reported 421 pending chemical notices.
September 28, 2026: This is the deadline for public comments regarding the August battery component notices.
December 11, 2026: The EPA's authority to collect fees from manufacturers expires.
The Tech Race
The current backlog of 421 chemical notices represents a significant operational departure from the 90-day review timeline established by the Toxic Substances Control Act. As domestic capacity stalls, foreign jurisdictions gain a competitive advantage in the commercialization of new materials.
Manufacturers report that 82% of companies are losing opportunities due to these delays, with 70% of projects canceled outright. The wait times specifically impact the development of domestic battery components, potentially slowing the supply chain for consumer electronics and electric vehicles.
The takeaway
The chemical manufacturing sector is currently inhibited by administrative bottlenecks that exceed one year in duration. Industry participants should monitor the December 11, 2026, expiration of EPA fee-collection authority as a potential trigger for future congressional action or policy updates.
What happens next
The EPA is expected to provide responses to pending manufacturer inquiries by September 21, 2026.
Further reading
For more on federal regulatory updates in material science, visit Chemistry.
Live Poll
Should the EPA prioritize faster review processes for new chemicals to keep manufacturing in the U.S.?









