The main purpose of this legislation is to allow the Secretary of the Interior to conduct a study to determine whether certain areas in California should be designated as the Monterey Bay National Heritage Area. This designation aims to recognize and preserve the cultural, historical, and natural significance of the region. Key provisions of the legislation include the requirement for the Secretary of the Interior to collaborate with various stakeholders, such as the State of California, local organizations, Tribal Governments, and nonprofit groups, in conducting the study.