This guide offers policy-makers and administrators a guide to evaluate labour migration policies work in practice, based on documented experiences in ASEAN and other parts of the world. It starts with the labour market tests used to determine whether the migrant workers requested by employers are really needed. The second section discusses the recruitment process, and the effectiveness of policies to match workers with jobs and minimize the cost of recruitment. The third section focuses on protection and outlines methods to assess policies that set the wages and working conditions of migrant workers and deal with complaints filed by workers with government agencies. The fourth section reviews evidence on the impacts of migration on destination and origin countries, including on incomes, productivity, and non-economic factors such as crime and congestion. The fifth section highlights the conceptual and practical difficulties involved in evaluating the effects of labour migration and lays out practical steps that national authorities can take to improve labour market testing, recruitment, labour market monitoring, and assessment of the overall impact. A final section reviews the experience of Malaysia in managing the admission and employment of foreign workers, and summarizes the research on migration’s impacts on the Malaysian labour market and economy