# NRC ORDER – NOV (SL III)
> **EA-11-163** · ORDER · Severity SLIII · Issued 2011-09-02 · Materials Licensees
## Action
- **EA Number:** EA-11-163
- **Licensee:** NOV (SL III)
- **Category:** Materials Licensees
- **Action type:** ORDER
- **Severity level:** SLIII
- **Date issued:** 2011-09-02
## Description

On September 2, 2011, the NRC issued a Notice of Violation to William Beaumont Hospital for a Severity Level III violation involving the failure to develop written procedures to provide high confidence that each administration was in accordance with the written directive as required by 10 CFR 35.41(a). Specifically, as of May 5, 2011, the licensee's written procedures for yttrium-90 treatments did not specify how personnel should administer a treatment using a fine bore catheter and a high concentration of microspheres in order to prevent blockage within the catheter.

## Source
- [Full enforcement letter (PDF)](https://www.nrc.gov/docs/ML1124/ML112490020.pdf)
- [NRC Materials Licensees index](https://www.nrc.gov/reading-rm/doc-collections/enforcement/actions/materials/)
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