StacksVerified U.S. regulatory reference

21 CFR §870.5900

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Identification. A thermal regulating system is an external system consisting of a device that is placed in contact with the patient and a temperature controller for the device. The system is used to regulate patient temperature.
  2. (b)Classification. Class II (performance standards).