Quantifying and analyzing pulmonary rehabilitation (PR) results in the form of an outcome assessment are a means of evaluating patient performance and program effectiveness. Implementation of a structured outcome assessment is feasible and parallels many aspects of the traditional rehabilitation evaluation. This statement outlines key components to PR outcome evaluation in the context of the American Association of Cardiovascular and Pulmonary Rehabilitation PR Outcome Matrix and includes a discussion of some of the popular tools used to collect measurement data.