Regulations last checked for updates: Feb 12, 2026

Title 21 - Food and Drugs last revised: Dec 18, 2026
§ 866.5270 - C-reactive protein immunological test system.

(a) Identification. A C-reactive protein immunological test system is a device that consists of the reagents used to measure by immunochemical techniques the C-reactive protein in serum and other body fluids. Measurement of C-reactive protein aids in evaluation of the amount of injury to body tissues.

(b) Classification. Class II (performance standards).

authority: 21 U.S.C. 351,360,360c,360e,360j,360
cite as: 21 CFR 866.5270