In October 2002, the Center for Disease Control and Prevention (CDC) published its updated "Guideline for Hand Hygiene in Health Care Settings". Based mainly on hospitalderived data, the document provides workers in all healthcare settings with a scientific review, specific recommendations for disease transmission through, appropriate hand hygiene and guidance on related issues like surgical hand antiseptics and skin care. Hand hygiene products for healthcare personnel are the regulatory jurisdiction of the U.S. Food and Drug Administration (FDA). FDA currently uses three classifications to identify these products: patient preoperative skin preparations, antiseptic hand washes and surgical hand scrubs. Antimicrobials deemed "safe and effective for use in antiseptic hand washes" include ethanol and povidone iodine.