The objective of this dissertation is two-fold: (i) propose a program evaluation model for enterprise standardization programs based upon two conceptual and interlinked approaches: program evaluation and organizational learning; (ii) to validate the proposed model through a case study on Transpetro s Marine Terminals Standardization Program. In this context, evaluation practice may generate organizational learning to help Transpetro correct standardization program deviations and increase its efficiency and effectiveness towards operational excellence. As a matter of fact, standardization programs are necessary in marine terminals operations where standards are the minimum acceptable requirements to fulfill the goals for the operator, and the maximum requirements provided to the work for the contractor. Additionally, marine terminals should attend sector s regulations, occupational safety guidelines, and environmental management standards. The motivation of this research arose from Transpetro s need to have a program evaluation model capable of measuring efficiency of its Marine Terminals Standardization Program. The methodology encompasses: (i) literature survey on program evaluation and organizational learning; (ii) design of a standardization program evaluation model based on a conceptual framework which links both theoretical approaches; (iii) development of a case study on Transpetro s Marine Terminals Standardization Program; and (iv) formulation of conclusions and suggestions for future research and replication in other organizational contexts. The main results can be summarized as follows: (i) an innovative evaluation model to assess enterprise standardization programs; and (ii) a set of indicators for measuring efficiency and effectiveness of Transpetro s Marine Terminals Standardization Program. As a conclusion, it can be said that the proposed program evaluation model fulfilled expectations and assumptions formulated at the very beginning of this research. According to the opinion of Transpetro s managers and teams involved, the model is a useful management and learning tool for enterprise standardization initiatives and has a large potential for replication in other organizational contexts from the empirical evidences achieved.