Significant New Use Rules on Certain Chemical Substances (26-3)
EPA proposes SNURs for certain chemical substances (26-3) under TSCA, requiring notification before any significant new use.
Aforeworn detected this change in the Environmental & Emissions Compliance (EPA) space on July 29, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Medium urgency. Manufacturers, importers, and processors of the listed chemical substances (26-3) that were subject to PMNs and an Order. should confirm how it applies to their specific situation before acting. There is a time constraint attached: Not specified in the excerpt; comment period ends 30 days after publication in the Federal Register (likely late August 2026).. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Environmental & Emissions Compliance (EPA) continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
EPA is proposing significant new use rules (SNURs) that would require persons to notify EPA at least 90 days before manufacturing, importing, or processing the substances for a significant new use.
Who it affects
Manufacturers, importers, and processors of the listed chemical substances (26-3) that were subject to PMNs and an Order.
What you must do
Review the proposed SNURs to identify if your operations involve the listed substances and prepare to submit a Significant New Use Notice (SNUN) if you intend to engage in a significant new use.
Deadline
Not specified in the excerpt; comment period ends 30 days after publication in the Federal Register (likely late August 2026).
Never miss a change like this again
Aforeworn watches Environmental & Emissions Compliance (EPA) around the clock and alerts you the moment a rule moves — with a plain-English brief on what to do.
Start your free trialRelated changes in Environmental & Emissions Compliance (EPA)
- US EPA seeks comments on plan to remove pyrolysis from air emissions rule - Waste Dive
- California climate disclosure laws: CARB approves greenhouse gas reporting and climate financial risk disclosure regulation - White & Case LLP
- EPA finalizes repeal of emissions rule that could have forced Colstrip’s closure - Montana Free Press
- EPA Extends Greenhouse Gas Reporting Rule Deadline - Office of Advocacy (.gov)
- New York Finalizes Mandatory Greenhouse Gas Reporting Program - Latham & Watkins LLP