# List of Approved Spent Fuel Storage Casks: MAGNASTOR® System
> **Nuclear Regulatory Commission** · Direct final rule; withdrawal. · Published 2013-05-29 · Effective 2013-05-29 · 78 FR 32077
## Document
- **Document number:** 2013-12742
- **Category:** nuclear-waste
- **Sub-agency:** Nuclear Regulatory Commission
- **Federal Register citation:** 78 FR 32077
- **CFR reference:** 10 CFR 72
- **Publication date:** 2013-05-29
- **Effective date:** 2013-05-29
- **Energy docket:** NRC-2012-0308
## Abstract

The U.S. Nuclear Regulatory Commission (NRC) is withdrawing a direct final rule that would have revised its spent fuel storage regulations to include Amendment No. 3 to Certificate of Compliance (CoC) No. 1031, NAC International, Inc. (NAC) Modular Advanced Generation Nuclear All-purpose Storage (MAGNASTOR[supreg]) System listing within the "List of Approved Spent Fuel Storage Casks." The NRC is taking this action because it has received a significant adverse comment for the vendor of MAGNASTOR[supreg] in response to a companion proposed rule which was concurrently published with the direct final rule.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/05/29/2013-12742/list-of-approved-spent-fuel-storage-casks-magnastor-system)
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