The purpose of this study is three-fold. The first is to provide the reader with a review of the literature concerning the topic of regional political integration. The second purpose is to provide an operational definition of regional political integration which can be useful in the testing of hypotheses. Regional political integration is defined in terms of the regional decision-making process. Various levels of regional political integration are defined, operationalized, and identified. The levels from lowest to highest are as follows: regional promotion, regional information exchange, regional policy coordination, regional monitor, and regional authoritative decision-making. The third purpose of the study is to analyze the factors which are hypothesized to be correlated with and responsible for the changing levels of regional political integration.