Nowadays, along with air and water pollution; noise pollution also hits the public life and createsrnproblems to the normal life. Noise: which implies to ‘unwanted sound’ or ‘sound that is loud,rnunpleasant or unexpected, has an impact on human health and environment. According to WHOrnstandards, noise level beyond 90 decibel damages to health and ontological (ear diseases) effects. It is arndistracter that prohibits us from performing at optimum ability, reduces the quality of life, and in cases,rnit may cause irreversible loss of hearing. The primary objective of this study is to assess the mainrnsources and impacts of noise pollution and examine the implementation of environmental pollutionrncontrol laws in Addis Ababa. The central issues of this study is identifying whether the regulatoryrnorgans regulating noise pollutions are properly enforcing the relevant laws or not.rnThe subjects of this study were environmental experts those working under the regulatory organs atrnvarious governmental levels including those working in Federal FECCC, AAEPA and each sub cityrnenvironmental protection office in Addis Ababa. Data were collected by using a structured surveyrnquestionnaire and analyzed by descriptive methods. The findings of the study show that different sourcesrnhave contributed for generation of noise pollution. These include: noise level generated from nightrnclubs, bar, restaurants, religious places, industry, vehicles and so on so forth. The findings also indicaternthat the noise level released from night clubs, bar and restaurants are beyond the permitted standards.rnSounds released from religious places with microphone are very high and noisy. But most of therncomplaints are associated to night clubs, bar and restaurants. The regulatory organs take only thernadministrative measures such as giving of warning notice sealing, relocating and so forth. No pollutersrnbrought to the court either in civil or criminal suit based on environmental pollution controlrnproclamation number 300/2002 or criminal law of Ethiopia’s the results of this study have shown