Governments and nonstate actors around the world have signed mutual recognition arrangements (MRAs), but while most of them share the goals of streamlining the recognition of foreign workers' qualifications and boosting labor mobility, the MRAs vary considerably. Implementation challenges faced in the Americas, Asia and the Pacific, and Europe offer lessons for Asian policymakers seeking to operationalize the MRAs of the Association of Southeast Asian Nations (ASEAN). This report is the latest in a project by the Asian Development Bank and the Migration Policy Institute to improve understanding of the barriers to the free movement of professionals within ASEAN and to support the development of strategies to overcome these hurdles. The report draws on insights of nearly 400 ASEAN and member state officials, private sector employers, training directors, and others who participated in focus group discussions, meetings, and surveys.