Classification by the Food and Drug Administration (FDA) of medical devices according to potential risks or hazards.

(FDA) An agency of the US federal government established by Congress in 1912 and presently part of the US Department of Health and Human Services. The FDA gives classifications of medical devices according to potential risks and controls the safety of marketed drugs.
For more details please visit the FDA's 'Our Mission and Mandate'.

See also Class I II III Devices and Phase 1 2 3 4 Drug Trials.