This report describes and illustrates a method by which a set of total accounts can be constructed from the U.S. National Income and Product Accounts (NIPA). These total accounts can be used in applied general equilibrium models. An appealing feature of the accounting system is that it allows a precise mapping of various components of the NIPA into the relevant markets with which they are associated. To the extent that this results in a more accurate representation of the initial state of the economy, the more reliable will be the results stemming from the imposition of economic models on the data.