This document summarizes key aspects of transportation costing and pricing. It discusses how pricing was regulated prior to deregulation, with rates published in tariffs and based largely on carrier costs. Post-deregulation, prices are largely determined by market forces, with carrier costs as part of the dynamic between customer demand and supply conditions. The document also outlines different market structure models, including perfect competition and monopoly, and explores cost-of-service and value-of-service pricing approaches. It provides an overview of general ratemaking practices, including class rate systems to simplify pricing complexity.