# Modernizing Requirements Relating to the Physical Protection of Category 1 and Category 2 Quantities of Radioactive Material

> **NRC** · Rulemaking · Modified 2026-05-12T10:46:57Z

## Docket
- **Docket ID:** NRC-2025-1238
- **Agency:** NRC
- **Type:** Rulemaking
- **Last modified:** 2026-05-12T10:46:57Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/NRC-2025-1238)
- [Public comments](https://www.regulations.gov/docket/NRC-2025-1238/comments)

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