This document discusses 21 CFR Parts 210 and 211, which outline current good manufacturing practices (cGMP) for pharmaceutical manufacturing as established by the U.S. Food and Drug Administration. It provides an overview of the various parts and subparts that comprise the cGMP regulations. These include general provisions, organization and personnel requirements, facilities and equipment specifications, production and process controls, packaging and labeling controls, and quality control. Definitions for key terms covered in the regulations are also presented, such as drug product, active pharmaceutical ingredient, batch, lot number, and theoretical and actual yields.