# Medical Devices; Immunology and Microbiology Devices; Classification of John Cunningham Virus Serological Reagents
> **Food and Drug Administration** · Final order. · Published 2014-01-23 · Effective 2014-02-24 · 79 FR 3739
## Document
- **Document number:** 2014-01216
- **Category:** fda-device
- **Sub-agency:** Food and Drug Administration
- **Federal Register citation:** 79 FR 3739
- **CFR reference:** 21 CFR 866
- **Publication date:** 2014-01-23
- **Effective date:** 2014-02-24
- **HHS docket:** Docket No. FDA-2013-N-1662
## Abstract

The Food and Drug Administration (FDA) is classifying John Cunningham Virus (JCV) serological reagents into class II (special controls). The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/01/23/2014-01216/medical-devices-immunology-and-microbiology-devices-classification-of-john-cunningham-virus)
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