The bill H. 3991, introduced in the South Carolina House of Representatives, aims to declare the nights of March through May and August through October as "Lights Out Nights in South Carolina Season." The resolution encourages residents to turn off nonessential lights during these months to protect migratory birds that travel through the state. It highlights the detrimental effects of light pollution on birds, particularly migratory songbirds that navigate using celestial cues and are vulnerable to collisions with buildings due to disorientation caused by artificial lighting.

The resolution emphasizes the importance of responsible lighting practices in light of South Carolina's rapid population growth and development, which have increased light pollution. It also notes the broader benefits of reducing light pollution, including improved mental and physical health for humans, support for declining insect populations, and enhanced stargazing opportunities. The resolution is supported by Audubon South Carolina and its affiliated chapters, which advocate for the protection of birds and wildlife in the state.