Puerto Rico Planning Board in the context of "Land use planning"

Caja de Muertos Nature Reserve (Spanish: Reserva Natural Isla de Caja de Muertos) is a nature reserve in southern Puerto Rico consisting of the islands of Caja de Muertos, Cayo Morrillito, Cayo Berbería, and their surrounding reefs and waters in the Caribbean Sea. This nature reserve was founded on January 2, 1980, by the Puerto Rico Planning Board (Junta de Planificación) as recommended by the Puerto Rico Department of Natural and Environmental Resources (Departamento de Recursos Naturales y Ambientales de Puerto Rico, DRNA) with the purpose of preserving the subtropical dry forest ecosystems found within these islands, some important sea turtle nesting sites, and the marine habitats found on their surrounding reefs and waters.

The Puerto Rico Register of Historic Sites and Zones (Spanish: Registro Nacional de Sitios y Zonas Históricas) is a Puerto Rican government program adopted by the state Planning Board (Junta de Planificación) for use by both private and public entities to evaluate, register, revitalize, develop or protect the built historic and cultural heritage of Puerto Rico in the context and for economic planning and land use zoning.

There is an overlap between the Register of Historic Sites and Zones and the federal National Register of Historic Places (Registro Nacional de Lugares Históricos), however, properties can be listed in the former and not in the latter and vice versa. Properties inscribed in the register can be either individual sites or historic districts (zonas históricas) consisting of multiple structures, buildings, and sites. As of 2024, there are more than 260 sites and historic districts listed in the Puerto Rico Register of Historic Sites and Zones. Sites can be listed in the register through legal codification by either the Puerto Rico Planning Board, the Puerto Rico State Historic Preservation Office or the Financial Advisory Authority and Fiscal Agency of Puerto Rico through a Real Property Evaluation and Disposition Committee which has been in place since 2023. 100