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Project Evaluations 

The Caribbean Ecological Services Field Office offers expertise in environmental planning for projects related to energy, transportation, water supply, development, flood control, communication towers, private development, recreation, streambank and shoreline protection. We work directly with federal agencies, state and local partners on infrastructure development projects to conserve natural resources in Puerto Rico and the U.S. Virgin Islands. 

We offer information on species and their habitats that help people understand the potential impacts of a proposed project on the environment, as well as information on practices that protect natural resources while streamlining the environmental review process. Our biologists can assist in developing plans that conserve, restore or enhance fish and wildlife while accomplishing the goals of the proposed project. 

The Endangered Species Act (ESA) provides a means for conserving the ecosystems upon which endangered and threatened species depend. The ESA requires that all federal agencies and federally funded projects participate in conserving these species. Specifically, section 7 (a)(1) of the ESA charges federal agencies to aid in the conservation of listed species, and section 7 (a)(2) requires the agencies, through consultation with the Service, to ensure their activities are not likely to jeopardize the continued existence of listed species or adversely modify designated critical habitats. Section 7 applies to the management of federal lands as well as federal actions that may affect listed species, such as federal approval of private activities through the issuance of federal funding, permits, licenses, or other actions. To initiate a consultation under the Section 7 of the ESA, you must submit a project package with the established minimum requirements. View the Caribbean Ecological Services Field Office-Project Evaluations fact sheet (below) to learn more about the requirements.

The Fish and Wildlife Coordination Act requires consultation with the Fish and Wildlife Service and the fish and wildlife agencies of States where the “waters of any stream or other body of water are proposed or authorized, permitted or licensed to be impounded, diverted … or otherwise controlled or modified” by any agency under a Federal permit or license (e.g., Coast Guard permits, Corps of Engineers Section 10/404/103 permits, EPA Section 402 permits, FERC licenses, NRC power station licensing, NRCS water resource projects, etc.). 

Consultation is to be undertaken for the purpose of “preventing loss of and damage to wildlife resources.” Service conservation recommendations should be given equal value in the agency’s decision-making process.

Caribbean Ecological Services Field Office - Project EvaluationsPDF0 BJuly 22, 2021

Consultation under Section 7 of the Endangered Species Act

The Caribbean Ecological Services Field Office has developed the Consultation under Section 7 of the Endangered Species Act with the Caribbean Ecological Services Field Office Template letter (below) that can be used as an example when submitting “may affect, but not likely to adversely affect” (NLAA) determinations as part of the section 7 process of the Endangered Species Act. Should you have any questions, please contact Marelisa Rivera, Deputy Field Supervisor at Caribbean_es@fws.gov.

Consultation under Section 7 of the Endangered Species Act with the Caribbean Ecological Services Field OfficePDF0 BJuly 22, 2021Blanket Clearance Letter for federally sponsored projects, Federal Highway AdministrationPDF0 BJuly 22, 2021Updated Blanket Clearance Letter for Federally sponsored projects, USDA Rural DevelopmentPDF0 BJuly 22, 2021Blanket Clearance Letter for Federally sponsored projects, Hazard Mitigation and Public Assistance GrantsPDF0 BJuly 22, 2021Especies amenazadas o en peligro de extinción y hábitats críticos bajo la jurisdicción del Servicio de Pesca y Vida Silvestre de los Estados Unidos, Puerto Rico e Islas Vírgenes AmericanasPDF0 BJuly 22, 2021Threatened and endangered species and critical habitats under the jurisdiction of the U. S. Fish and Wildlife Service, Puerto Rico and the U.S. Virgin IslandsPDF0 BJuly 22, 2021Technical Assistance to Evaluate Effects on Antillean manatees.pdfPDF0 BJuly 19, 2023

Listed Species Conservation Measures 

The Service has developed recommendations to assist other agencies, private organizations, and the community to avoid or minimize adverse impacts on listed species during project development actions in areas where these species may occur. These recommendations should be included in your project plan and implemented during activities. The available species conservation measures (below) are: Antillean manatee, Puerto Rican rock frog (Guajón), Puerto Rican crested toad and sea turtles. 

Conservation Measures for the Antillean manatee for marine eventsPDF0 BJanuary 12, 2023Conservation Measures for the Puerto Rican crested toad.pdfPDF0 BJanuary 12, 2023Conservation Measures for the Puerto Rican rock frogPDF0 BSeptember 4, 2025Conservation Measures for the Puerto Rican boaPDF0 BFebruary 13, 2024Conservation Measures for the Virgin Islands tree boaPDF224 KBFebruary 13, 2026Conservation Measures for sea turtles in Puerto Rico and the U.S. Virgin Islands.pdfPDF0 BJanuary 12, 2023Conservation measures for the Puerto Rican Harlequin butterflyPDF0 BApril 5, 2024

Programmatic Biological Opinion for the Puerto Rican boa and the Virgin Islands tree boa

The Service has developed a Programmatic Biological Opinion (PBO) for the Puerto Rican boa and the Virgin Islands tree boa (below), addressing the take of both species in the form of capture and relocation while conducting activities with federal nexus or under the jurisdiction of a Federal agency in Puerto Rico and U.S. Virgin Islands (USVI). Proposed projects located within the range of the Puerto Rican boa or the Virgin Islands tree boa might have encounters with these species during project activities. If the proposed federal action (i.e., the Applicant’s project) contemplates the capture and relocation to remove these boas out of harm’s way during the project activities, then a take of the species would occur, which will require the federal agency to make a determination of a may affect, likely to adversely affect (MLAA) and the Federal Agency must initiate formal consultation. The Service will concur with the MLAA determination, and the Federal agency and/or the Applicant will be exempted from the take that could result from the actions described in Section 2 of the PBO, provided that they comply with the Terms and Conditions stated in Section 6.4 of the PBO (see enclosure). Please note the PBO also has reporting requirements (Section 6.5) regarding the capture and relocation of boas; these reporting requirements are mandatory and must be complied with. If the Federal agency or the Applicant does not contemplate the capture and relocation of the boas out of harm’s way, then the project activities must stop until the species leave the area on their own. 

Programmatic Biological Opinion (PBO) for the Puerto Rican boa and the Virgin Islands tree boaPDF0 BSeptember 17, 2025

Guidance for Repair, Replacement, and Clean-up of structures in Streams and Waterways of Puerto Rico and US Virgin Islands

In Puerto Rico (PR) and US Virgin Islands (USVI), flooding caused by heavy rainfall events, tropical storms, and hurricanes can damage stream crossings (bridges, culverts, low-water crossings, etc.) and in-stream structures (piers, docks, etc.), and create debris jams. Many streams in PR and USVI support an array of aquatic species, including anadromous and catadromous native fish and a suite of native shrimp. Repair and clean-up activities in streams have the potential to adversely affect these species and their habitat, causing sedimentation in areas downstream of the project and disruption of sediment transport leading to channel instability. The Service has developed the Guidance for Repair, Replacement, and Clean-up of structures in Streams and Waterways of Puerto Rico and US Virgin Islands (below) with further recommendations to prevent or minimize impacts during projects that will be conducted in aquatic habitats. The guidance applies to creeks, rivers, and tidally-influenced waters in PR and USVI. 

Guidance for Repair, Replacement, and Clean-up of structures in Streams and Waterways of Puerto Rico and US Virgin IslandsPDF0 BSeptember 17, 2025

Information for Planning and Consultation (IPaC)

The Service's digital project planning tool, Information for Planning and Consultation (IPaC), helps federal and states agencies and consultants identify resources based on user-drawn project locations. IPaC automatically provides resource lists, endangered and threatened species lists, and information such as conservation measures for the species that might be present in the proposed project area. 

IPaC is a tool to identify potential impacts to endangered and threatened species and provides suggestions for addressing them early in the project development process, helping to save time and money and avoid potential project delays. Link to the tool: https://ecos.fws.gov/ipac/.

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