This chapter reviews the Thai policies and practices related to the promotion of a culture of integrity in the public service. In particular, Thailand could strengthen the guidance offered to civil servants on the Code of Professional Ethics for the Civil Service, by assigning to the Public Sector Anti-Corruption Commission (PACC) a role as leading agency for training, advisory and receiving of the Code. Thailand could also mainstream integrity policies in human resource management and ensure the enforcement of integrity standards. Finally, Thailand could improve the monitoring and evaluation framework for integrity policies.