The document describes the typical life cycle of a regulatory agency according to Bernstein and Marver's theory of bureaucratic politics. It progresses through four stages: gestation, youth, maturity, and old age. Key characteristics are described for each stage, including rapid growth and conflict in youth giving way to protection of regulated industries and capture in later stages. An example of the life cycle of the Interstate Commerce Commission is then provided from its creation in 1887 through its dissolution in 1995.