The main purpose of this legislation is to officially designate a segment of the Kissimmee River in Florida as part of the Wild and Scenic Rivers System. This designation aims to protect the river's natural beauty and recreational value, ensuring that it remains a preserved area for public enjoyment and ecological health. Key provisions of the legislation include the specific boundaries of the designated river segment, which starts approximately 16 miles downstream of Lake Kissimmee and ends about 15 miles upstream of Lake Okeechobee.