# List of Approved Spent Fuel Storage Casks: NAC International MAGNASTOR® System; Certificate of Compliance No. 1031, Amendment No. 4
> **Nuclear Regulatory Commission** · Direct final rule. · Published 2015-01-29 · Effective 2015-04-14 · 80 FR 4757
## Document
- **Document number:** 2015-01693
- **Category:** nuclear-waste
- **Sub-agency:** Nuclear Regulatory Commission
- **Federal Register citation:** 80 FR 4757
- **CFR reference:** 10 CFR 72
- **Publication date:** 2015-01-29
- **Effective date:** 2015-04-14
- **Energy docket:** NRC-2014-0058
## Abstract

The U.S. Nuclear Regulatory Commission (NRC) is amending its spent fuel storage regulations to add Amendment No. 4 to the Certificate of Compliance (CoC) No. 1031 for the NAC International MAGNASTOR[supreg] System. Amendment No. 4 changes a limiting condition for operation (LCO) in the technical specifications for transportable storage canister (TSC) vacuum drying and helium backfill times, and corrects a typographical error. The NRC approval of this Amendment would not authorize transportation.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/01/29/2015-01693/list-of-approved-spent-fuel-storage-casks-nac-international-magnastor-system-certificate-of)
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