Measures To Restrict Stockpiling of Polysilicon and Polysilicon Derivatives Under Proclamation 11052
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Sept. 24, 2026. Document 2026-19537. Updated Nov. 5, 2026.
- What it does
On August 6, 2026, the President issued Proclamation 11052, "Adjusting Imports of Polysilicon and Its Derivatives Into the United States" (Proclamation 11052), ordering the Secretary of Commerce (Secretary) to take action to restrict imports by a company if he determines the company is stockpiling polysilicon or polysilicon derivatives (Polysilicon Products) in advance of import adjustments that will be effective on December 4, 2026. The Bureau of Industry and Security (BIS), in this temporary final rule (TFR), announces the criteria and process it will use to monitor existing companies for evidence of stockpiling, limit a newly established importer's ability to stockpile, and subject companies that are stockpiling to an import prohibition if necessary. This TFR also establishes the process for such companies to obtain a waiver from any import prohibitions imposed pursuant to this rule, and imposes certain import limitations on new importers that register with U.S. Customs and Border Protection (CBP) on or after August 6, 2026.
The Industry and Security Bureau's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 15 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 Industry and Security Bureau has published 12 final rules in 2026 so far, compared with 22 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- Before this
No earlier Federal Register document under regulation identifier 0694-AK57 since Jan. 1, 2025.
- What happens next and when
This rule is effective September 22, 2026, through December 3, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-19537 |
|---|---|
| Action | Temporary final rule. |
| Agencies | Commerce Department; Industry and Security Bureau |
| Published | Sept. 24, 2026 |
| Effective date | Sept. 22, 2026 |
| Regulation identifier (RIN) | 0694-AK57 |
| Docket | BIS-2026-0562 |
Source: the Federal Register (public domain). The document in the Federal Register