Comparative public policy (CPP) involves the systematic comparison of public policies in different countries or regions within a country, over different periods of time and a variety of issues. This chapter discusses the development of the study of language planning, which including the development of translation policies, from a comparative perspective by addressing one of the most important issues in CPP, evaluation. It aims to expand existing frameworks in language policy analysis by proposing a general methodology that lends itself to comparative analyses across jurisdictions and domains, thereby contributing to the development of the culture of policy analysis in language policy and planning. The chapter presents how to structure the evaluation of a language policy and discusses how the most important evaluation criteria can be operationalised through indicators, a necessary tool of comparative analysis. It illustrates some existing linguistic indicators, and provides examples of indicators that are relevant for the evaluation of translation policy in multilingual states and international organisations.