The purpose of this legislation is to amend an existing law related to fees for entering federal recreational lands and waters. The main objective is to establish specific days each year when entrance fees will be waived, making these areas more accessible to the public. Key provisions of the legislation include the requirement for the Secretary of the Interior to designate certain days as fee-free days. These days include Martin Luther King Jr. Day, the first day of National Park Week, Juneteenth, Great American Outdoors Day, National Public Lands Day, and Veterans Day.