Abstract: New noise law has come into effect recently in Macao, a 30-km² city well known as the world's gaming center. As a popular tourism and gambling hotspot located in southern China, Macao is busy with workforce and visitors almost around the clock. This unique pattern of activities places challenges in keeping potential noise impacts upon residential areas to an acceptable level. It is not difficult to imagine that the number of noise complaints have been rising over the past few years making noise one of the primary environmental issues. This paper presents an overview of the new law and highlights of the potential challenges in noise control. Comparisons shall be made to those of the nearby regions, whereby relevant experience may serve as a good reference.