Background: Hand washing has become one of the most recommended methods of infection control in hospitals. Studies indicate that the knowledge, attitude and practices are poor in many countries. There has not been any similar study in Trinidad and Tobago. This study is attempt to document the situation in the twin-Island state. Aim: To document the perceptions of the nurses in the Intensive Care Units (ICUs) of the selected hospitals in Trinidad with regard to hand washing in accordance with the policies of the Ministry Health, Trinidad and Tobago. Methods: A cross-sectional survey was conducted using 3 major hospitals with ICUs. 81% of the nurses in the units voluntarily participated. Result was analyzed in simple percentage frequencies and presented in tables. Results: Overall the nurses show favourable perceptions on aspects of the policy. There are however aspects of the perceptions that are suspect. Discussion: The result was discussed noting the implications of their perceptions compared to literature.