Significant New Use Rule on a Certain Chemical Substance; Multi-Walled Carbon Nanotubes
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 24, 2026. Document 2026-14994. Updated Nov. 8, 2026.
- What it does
EPA is issuing a significant new use rule (SNUR) under the Toxic Substances Control Act (TSCA) for a certain chemical substance that was the subject of a premanufacture notice (PMN) and is also subject to an Order issued by EPA pursuant to TSCA. The SNUR requires persons to notify EPA at least 90 days before commencing the manufacture (defined by statute to include import) or processing of this chemical substance for an activity that is designated as a significant new use in the SNUR. The required notification initiates EPA's evaluation of the conditions of that use for that chemical substance. In addition, the manufacture or processing for the significant new use may not commence until EPA has conducted a review of the required notification; made an appropriate determination regarding that notification; and taken such actions as required by that determination.
The Environmental Protection Agency's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 40 of the Code of Federal Regulations:
Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).
- Compared with
The Environmental Protection Agency has published 243 final rules in 2026 so far, compared with 263 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- Before this
21 earlier Federal Register documents under regulation identifier 2070-AB27 since Jan. 1, 2025.
- July 23, 2026 Proposed rule. Significant New Use Rules on Certain Chemical Substances (26-3)
- June 10, 2026 Proposed rule. Significant New Use Rules on Certain Chemical Substances (26-1)
- June 5, 2026 Proposed rule. Significant New Use Rules on Certain Chemical Substances (25-3.5e)
- May 29, 2026 Final rule. Significant New Use Rules on Certain Chemical Substances (25-2.5e)
- May 22, 2026 Final rule. Significant New Use Rules on Certain Chemical Substances (25-1.5e)
- May 21, 2026 Proposed rule; extension of comment period. Significant New Use Rules on Certain Chemical Substances (26-2); Extension of Comment Period
- April 24, 2026 Proposed rule. Significant New Use Rules on Certain Chemical Substances (26-2)
- Nov. 4, 2025 Final rule. Significant New Use Rules on Certain Chemical Substances (24-4.5e)
Since then:
- July 30, 2026 Proposed rule. Significant New Use Rules on Certain Chemical Substances (26-4)
- Aug. 26, 2026 Final rule. Significant New Use Rules on Certain Chemical Substances (24-5.5e)
- Oct. 15, 2026 Final rule. Significant New Use Rules on Certain Chemical Substances (26-1)
- Oct. 15, 2026 Final rule; correction. Significant New Use Rules on Certain Chemical Substances (24-5.5e); Correction
- Nov. 2, 2026 Proposed rule. Significant New Use Rules on Certain Chemical Substances (26-7)
- Nov. 5, 2026 Final rule. Significant New Use Rules on Certain Chemical Substances (25-3.5e)
- What happens next and when
This rule is effective on September 22, 2026. For purposes of judicial review, this rule shall be promulgated at 1 p.m. (EST) on August 7, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-14994 |
|---|---|
| Action | Final rule. |
| Agencies | Environmental Protection Agency |
| Published | July 24, 2026 |
| Effective date | Sept. 22, 2026 |
| Regulation identifier (RIN) | 2070-AB27 |
| Docket | EPA-HQ-OPPT-2025-2169 |
Source: the Federal Register (public domain). The document in the Federal Register