U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
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All TitlesTitle 21Chapter IPart 866Subpart C - Subpart C—Microbiology Devices
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(a) Identification. A quality control kit for culture media is a device that consists of paper discs (or other suitable materials), each impregnated with a specified, freeze-dried, viable microorganism, intended for medical purposes to determine if a given culture medium is able to support the growth of that microorganism. The device aids in the diagnosis of disease caused by pathogenic microorganisms and also provides epidemiological information on these diseases.
(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 866.9.