1. Short title This Act may be cited as the Fort San Gerónimo Preservation Act . 2. Definitions In this Act: (1) Fort San Gerónimo del Boquerón The term Fort San Gerónimo del Boquerón (also known as Fortín de San Gerónimo del Boquerón ) means the fort and grounds listed on the National Register of Historic Places and located near Old San Juan, Puerto Rico. (2) Secretary The term Secretary means the Secretary of the Interior. 3. Establishment of affiliated area (a) In general Fort San Gerónimo del Boquerón in Puerto Rico is established as an affiliated area of the National Park System. (b) Description of affiliated area The affiliated area shall consist of the area generally depicted on the map titled Fort San Gerónimo Proposed Affiliated Area , numbered 910/176698, and dated July 2021. (c) Administration The affiliated area shall be managed in accordance with— (1) this Act