Environmental Protection Agency · EPA-HQ-OPPT-2025-2169
Significant New Use Rule on a Certain Chemical Substance; Multi-Walled Carbon Nanotubes
The Federal Register published the matched proposal on June 5, 2026 and the matched final rule on July 24, 2026, 49 days later.
Official publication history
Proposal ·
Significant New Use Rules on Certain Chemical Substances (25-3.5e)
Comment date listed July 6, 2026
Final rule ·
Significant New Use Rule on a Certain Chemical Substance; Multi-Walled Carbon Nanotubes
Effective date in register data September 22, 2026
Final rule ·
Significant New Use Rules on Certain Chemical Substances (25-3.5e)
Effective date in register data January 4, 2027
About this timeline
How the records were matched
America.co links a proposed rule and a later final rule when the Federal Register records share the exact docket identifier and lead agency. This snapshot covers records published from January 1, 2025 to November 10, 2026.
A docket can hold more than one regulatory action. Dates here are dates listed in individual notices. Later corrections, court actions, other dockets and records outside the date window may change what applies. Follow the official documents for the full text and effective dates.
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