What are Noise Zones?

Since 1974, the Department of Defense has been using the Day-Night Average Sound Level (Ldn) noise descriptor. Noise Exposure Levels are classified into three levels. Noise Exposure Level N3 (75 Ldn or higher) is the area of greatest impact. Noise Exposure Level N2 (65 to 74 Ldn) is the area of moderate impact. Noise Exposure Level N1 (below 65 Ldn) is the area of least impact. Emerald Isle is primarily in the 60 to 65 Ldn zone which means properties within these areas will experience a low to moderate impact from aircraft noise. Residents, property owners, visitors and prospective property owners should be aware of these factors.

Is My Property in an Accident Potential Zone or a Noise Zone? (PDF)

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1. Why are there military planes flying over Emerald Isle?
2. What does the military do at Bogue Field and why is it important?
3. What are Accident Potential Zones?
4. What are Noise Zones?
5. What is the Eastern Carolina Joint Land Use Study?
6. How does a citizen register a complaint regarding aircraft noise or safety?
7. Who do I contact if I have questions about the Eastern Carolina Joint Land Use Study?