# NRC NOV – NOV (SL III)
> **EA-02-020** · NOV · Severity SLIII · Issued 2002-04-02 · Materials Licensees
## Action
- **EA Number:** EA-02-020
- **Licensee:** NOV (SL III)
- **Category:** Materials Licensees
- **Action type:** NOV
- **Severity level:** SLIII
- **Date issued:** 2002-04-02
## Description

On April 2, 2002, a Notice of Violation was issued for a Severity Level III violation involving the failure to secure from unauthorized removal or limit the access to licensed material (13 Troxler Series 3400 moisture density gauges each containing a nominal 10 millicuries of cesium-137 and a nominal 50 millicuries of americium-241) in an unrestricted area, and failure to control or maintain constant surveillance of this licensed material.

## Source
- [NRC Materials Licensees index](https://www.nrc.gov/reading-rm/doc-collections/enforcement/actions/materials/)
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