# List of Approved Spent Fuel Storage Casks: TN Americas, LLC Standardized NUHOMS® Horizontal Modular Storage System for Irradiated Nuclear Fuel, Certificate of Compliance No. 1004, Renewed Amendment No. 19

**Action Urgency Score:** 30/100

| Field | Value |
|---|---|
| Agency | Nuclear Regulatory Commission |
| Type | Final rule |
| Action | Direct final rule. |
| Published | 2026-08-26 |
| Effective | 2026-11-09 |
| Comments close | 2026-09-25 |
| Significant | No |
| CFR parts | 10 CFR 72 |
| Summary | The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations by revising the TN Americas, LLC Standardized NUHOMS[supreg] Horizontal Modular Storage System for Irradiated Nuclear Fuel listing within the "List of approved spent fuel storage casks" to include Amendment No. 19 to Certificate of Compliance (CoC) No. 1004. Amendment No. 19 revises the certificate of compliance to provide for a 61BTH improved basket design using staggered plates similar the 24PTH Type 3 basket approved in CoC 1004 Amendment 18 and similar to the EOS 37PTH and 89BTH baskets approved in  |
| Document number | 2026-17445 |

## Why this score
- Final rule.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/08/26/2026-17445/list-of-approved-spent-fuel-storage-casks-tn-americas-llc-standardized-nuhoms-horizontal-modular). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.