The purpose of this legislation is to celebrate the 250th anniversary of the United States by allowing free access to national parks and certain recreational sites on September 17, 2026. This initiative aims to encourage public participation in outdoor activities and promote tourism during this significant milestone. Key provisions of the legislation include the requirement for the Secretary of the Interior to designate September 17, 2026, as a day when all entrance fees to units of the National Park System and the National Wildlife Refuge System are waived.