The Dark Sky Act regulates outdoor lighting in Illinois to minimize light pollution.
The Dark Sky Act, also known as the Responsible Outdoor Lighting Control Act, mandates that new or renovated luminaires purchased or rented with State funds for outdoor illumination must comply with specific lighting standards. These standards include minimizing light by no more than 25% above ANSI/IES standards, ensuring luminaires do not emit light above 80 degrees from nadir, and setting a maximum correlated color temperature of 2,700 Kelvin. Exceptions are made for certain types of lighting, such as navigational systems, emergency services, and historical lighting.
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- Core Provisions
- Implementation
- Impact
- Legal Framework
- Critical Issues
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