Practical GuidanceFree Trial
Learn More AboutPractical Guidance
By: Parker Moore and Katrina Krebs, Beveridge & Diamond PC
This article provides an overview of the Endangered Species Act (ESA)1 and discusses the obligations of real estate developers and property owners with respect to the ESA.
CONGRESS ENACTED THE ESA IN 1973 TO PROTECT AND recover imperiled species and their habitats. The U.S. Fish & Wildlife Service (FWS) and the National Marine Fisheries Service (NMFS) (collectively, the Services) together administer the ESA. The FWS has jurisdiction over terrestrial and freshwater species, whereas the NMFS has jurisdiction over marine wildlife and anadromous fish (fish that live the majority of their life in the sea but for spawning in freshwater). More than 1,600 species are currently listed as endangered or threatened under the ESA in the United States.
The presence of an endangered or threatened species on private or public land that overlaps with real estate development may impose certain duties, such as avoiding unauthorized take and, in the case of federal agencies, requiring consultation with the FWS or NMFS before issuing a federal permit or other authorization that may affect those species. The ESA broadly defines take to include a broad range of actions, such as to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect an endangered wildlife species, or any attempt to engage in such conduct.2 As violation of the ESA’s prohibition on unauthorized take can lead to civil and criminal penalties if unauthorized take occurs, property owners and developers should follow the necessary steps to ensure ESA compliance early in the real estate development planning stages. Real estate developers must also understand the requirements imposed by the Migratory Bird Treaty Act, the Bald and Golden Eagle Protection Act, the Lacey Act, and other federal laws, as well as state species protection laws, though these are beyond the scope of this article.
A species, subspecies, or distinct population segment of a species may be listed as endangered or threatened under Section 4 of the ESA upon petition or by voluntary review by the Services. Endangered species are those that the FWS or NMFS determines to be in danger of extinction throughout all or a significant portion of their range. In comparison, threatened species are those that are likely to become endangered in the foreseeable future—meaning so long as the Services can reasonably determine that the future threats and species’ responses are likely (i.e., not simply speculative).
Species Listing Process
Individuals or organizations may initiate the species listing process by submitting a petition to the FWS or NMFS explaining why they believe a particular species should be classified as threatened or endangered. The agency then must determine within 90 days, to the extent practicable, whether there is substantial information indicating that listing the species may be warranted. If it makes an affirmative 90-day finding, the FWS or NMFS then must complete a Species Status Assessment within 12 months, evaluating whether listing the species is (1) warranted, (2) warranted but precluded as other species are of higher listing priority, or (3) not warranted (known as a 12-month finding). In practice, however, the Services often miss these deadlines, resulting in legal challenges from the petitioning party.
If the FWS or NMSF determines that listing is warranted, it must publish a proposed rule to list the species in the Federal Register and solicit public comment for 60 days. Real estate owners and other stakeholders may wish to comment on the proposed rule if the species occurs within their property, they believe the species may be affected by their activities, or they believe the proposed listing is not appropriate or should be downgraded (i.e., from endangered to threatened). The Services analyze all public comments and publish a final rule in the Federal Register listing the species, assuming they still believe listing is warranted. The listing will take effect no sooner than 30 days after publication.
If the agency determines that listing the species is warranted but precluded, the species becomes a candidate for future listing. Candidate species are not protected under the ESA but are subject to special review requirements under Section 7 of the ESA. The Services must annually reassess a candidate species’ status to determine whether its listing priority should change.
The Services follow a similar procedure when voluntarily choosing to list a species or when delisting or changing a species’ listing status.
Species Listing Criteria
The Services determine whether listing a species as threatened or endangered is warranted based on the following factors:
The Services may not consider economic impacts in deciding whether to list a species, although recent revisions to the Services’ ESA regulations provide the agencies with discretion to publish this information in the listing decision for transparency purposes. The listing decision may only be based on the best available science, which initially is compiled in the Species Status Assessment and must be supplemented whenever additional information meeting this standard becomes available. The Species Status Assessment can thus serve as a valuable resource for the regulated community to identify information about a species’ current condition, its range and habitat, and the threats to the species.
The ESA directs the Services to review all listings every five years to determine whether the species should be reclassified or delisted based on the factors listed above. Delisting rarely occurs—only about 1% of species have been delisted to date.
Designating Critical Habitat
The ESA directs the Services to designate, to the maximum extent prudent and determinable, critical habitat for listed species, meaning geographic areas essential to the species’ conservation. The Services have been unable to keep pace with this obligation, having designated critical habitat for fewer than 900 species to date. Critical habitat, which may include public and private lands, is generally not coextensive with the entire range occupied by the listed species. It instead is limited to:
The ESA regulations, most recently revised in 2019, further restrict areas that may be designated as critical habitat. Unoccupied habitat may only be designated as critical habitat where (1) the designation of all occupied areas as critical habitat is inadequate to ensure the conservation of the species, (2) it is reasonably certain that the unoccupied habitat will contribute to the species’ conservation, and (3) it is reasonably certain that the unoccupied area contains physical or biological features essential to the species’ conservation.
Unlike the listing process, critical habitat must be based on the best available science, after taking into consideration economic impacts, national security, and other considerations.
Section 9 of the ESA bans the import, export, transport, and sale of endangered fish, wildlife, and plants in interstate and foreign commerce. Public and private individuals and organizations are further prohibited from engaging in the acts described below. Real estate owners and developers must understand these prohibitions because violations can result in civil and criminal liability.
Endangered Fish and Wildlife Prohibitions
The intentional or unintentional take of endangered fish and wildlife species without authorization is prohibited under Section 9 on private and public lands. The ESA broadly defines take as to harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect a species, or to attempt to engage in any such conduct.
Harassment refers only to intentional or negligent acts that create a likelihood of injury to wildlife by annoying it to such an extent as to significantly disrupt normal behavioral patterns. The FWS recently recognized that harassment does not include incidental take that results from otherwise lawful activities. By contrast, harm requires that the individual or organization actually kill or injure wildlife through, for example, significant habitat modification that significantly impairs essential behavioral patterns. Harm can include incidental take, but mere potential to harm a species does not constitute take.
Endangered Plant Prohibitions
The ESA’s protection of endangered plants is more limited than that for endangered wildlife because the take prohibition does not extend to plant species. Nevertheless, individuals or organizations may not remove, possess, or maliciously destroy or damage endangered plants on federal land. Furthermore, these parties are prohibited from removing, cutting, digging up, damaging, or destroying endangered plants on private property in knowing violation of any state law or regulation.
Threatened Species Prohibitions
The ESA does not automatically extend these prohibitions to threatened wildlife and plant species. Section 4(d) instead gives the Services the authority to issue regulations necessary and advisable to provide for the conservation of threatened species.
Pursuant to this authority, in 1978, the FWS (but not the NMFS) issued a blanket 4(d) rule extending the take prohibition to all threatened wildlife species unless the FWS promulgated a specific 4(d) rule for a species prescribing different treatment. The FWS revised its ESA regulations in 2019, however, and withdrew the blanket 4(d) rule going forward, restoring the ESA’s distinction between endangered and threatened wildlife species in future listing decisions. For newly listed threatened wildlife species, if the FWS determines that a take prohibition or other protection is necessary, it will promulgate a species-specific rule establishing that prohibition or protection. Otherwise, take of a wildlife species newly listed as threatened after September 26, 2019, is not prohibited. Take of previously listed threatened wildlife species still is prohibited by regulation absent FWS authorization or a species-specific 4(d) rule.
Because the NMFS never adopted a blanket 4(d) rule, the FWS’s new regulations create more consistent regulation of threatened species between the agencies.
Section 7 of the ESA requires federal agencies to consult with the FWS or NMFS whenever they carry out, fund, or authorize an action that may affect any threatened or endangered species or cause the destruction or adverse modification of designated critical habitat for any listed species. Section 7 consultation most frequently affects the regulated community when private activities require a federal permit or are planned to occur on federal lands, all of which trigger an obligation for the authorizing federal agency to consult with the FWS or NMFS before the agency may permit the activity if a listed species may be affected. Consultation ensures that federal agency authorization of the activity will not jeopardize the continued existence of the species or result in the destruction or adverse modification of critical habitat.
To determine whether consultation is necessary, real estate owners and developers and the federal action agency first identify any endangered or threatened species or critical habitat in the project area. The FWS’s Information for Planning and Conservation (IPaC)3 database is a helpful resource that can provide general species and critical habitat location information. The IPaC database is not definitive, however, and real estate owners and developers should consider surveying their lands for suitable listed species habitat and/or the species themselves.
If no listed species or critical habitat occurs within the project area and/or the action agency determines that the proposed federal action will have no effect on listed species or critical habitat, Section 7 consultation is not required. The federal action agency does not need to seek the Services’ concurrence in making a noeffect determination but may choose to confer with the FWS or NMFS. If, on the other hand, the action agency determines that the proposed federal action may affect a listed species or critical habitat, it must proceed with Section 7 consultation.
Federal action agencies engage in informal consultation with the Services to determine whether their proposed actions may affect a listed species or critical habitat. Informal consultation results in the issuance of a biological assessment by the action agency, which identifies potential impacts to endangered or threatened species and critical habitat.
Informal consultation ends if the action agency finds, and the FWS or NMFS concurs, that the agency action (1) will have no effect on any listed species or critical habitat or (2) that it may affect but is not likely to adversely affect, any listed species or critical habitat. Under the revised ESA regulations, the Services have 60 days after receiving a written request from the action agency to concur that the project is not likely to adversely affect listed species or critical habitat.
Property owners and developers may wish to adopt avoidance and minimization measures to ensure that the action agency makes a not-likely-to-adversely-affect finding and, thus, avoids the need for formal consultation. Avoidance and minimization measures are developed by conferring with the involved state and federal agencies and may include timing restrictions and best management practices. For example, for the federally endangered Indiana bat, which roosts in trees during summer, property owners and developers may restrict tree removal to the time of year when bats are not likely to be present, direct temporary lighting away from bat habitat, and use bright colored flagging or fencing to ensure that tree clearing only occurs in the specified areas.
In contrast, if the action agency finds that the project is likely to adversely affect some or all listed species or critical habitat, it must initiate formal consultation with the FWS or NMFS.
After receiving the request for formal consultation, the FWS or NMFS initiates consultation once the agency determines that it has a complete initiation package. A complete initiation package includes:
The FWS or NMFW must then complete consultation within 135 days unless this period is extended by the action agency or, if the extension is for more than 60 days, by the property owner. The Services may seek information, such as data about potential effects to species, from the property owner throughout the consultation process.
Formal consultation concludes with the issuance by the FWS or NMFS of a biological opinion, which is based on the best available science and examines the potential impacts of the agency action as compared to the environmental baseline and cumulative effects. The biological opinion determines whether the project will result in jeopardy to endangered or threatened species or the destruction or adverse modification of critical habitat.
Actions that are likely to adversely affect a listed species or critical habitat may proceed so long as they do not result in jeopardy or destruction/adverse modification. In these circumstances, the Services issue an incidental take statement that exempts a specified amount of incidental take (i.e., take that results from but is not the purpose of the project) from the ESA’s take prohibition and mandates that the property owner adopt reasonable and prudent measures to minimize species impacts.
While extremely rare, actions that the FWS or NMFS determines will result in jeopardy or adverse modification may not proceed unless one of two requirements is met:
Contents of a Biological Opinion
Potential impacts. The Services were previously required to consider the direct, indirect, interrelated, and interdependent effects of the project on endangered and threatened species and critical habitat. However, the revised ESA regulations issued in 2019 instead specify that the Services must evaluate the consequences of the project that would not occur “but for” the proposed action and that are reasonably certain to occur.
Environmental baseline. The environmental baseline is defined as the condition of the listed species or critical habitat in the action area, without the consequences to the listed species or critical habitat caused by the proposed development. The environmental baseline includes:
The revised ESA regulations explicitly include the consequences of ongoing agency action or existing agency facilities not within the agency’s discretion to modify in the environmental baseline.
Cumulative effects. Cumulative effects are defined differently under the ESA than in other contexts, such as under the National Environmental Policy Act (NEPA). The ESA provides that cumulative effects are the effects of proposed action, together with other state or private (but not federal) activities, which are reasonably certain to occur.
Best available science. The FWS and NMFS must base the analysis in their biological opinions on the best available science, which may include species and habitat surveys, information from previous biological opinions, the Species Status Assessment, and other scientific studies. In some circumstances where the best available science does not adequately allow the Services to predict species impacts, the Services may work with the action agency and project proponents to request development of additional species information, but the action agency does not necessarily have to develop new information to comply with the best available science standard.
Conference reports. Species proposed for listing and proposed critical habitat areas also undergo Section 7 review, though it is not as demanding as the Section 7 consultation process. Specifically, the ESA requires a federal action agency to confer with the FWS or NMFS if a proposed federal action could jeopardize the continued existence of a proposed species or cause destruction or adverse modification of proposed critical habitat. The conference may result in the issuance of a conference opinion containing preliminary findings of no jeopardy or no adverse modification and recommending means of avoiding and minimizing potential adverse impacts. Project owners and developers can benefit from the issuance of a conference report because, if the species is listed or the critical habitat is designated before the project is complete, the FWS or NMFS may adopt the conference opinion as the biological opinion, avoiding the need to reinitiate Section 7 consultation.
Reinitiation of Consultation
The Section 7 consultation requirement does not end once the FWS or NMFS issues the biological opinion and incidental take statement. The action agency must continue to evaluate new information about potential impacts from the federal action for as long as that action continues (e.g., in the case of a federal permit, for as long as the permit remains in effect) and must reinitiate consultation if one of the following conditions is met:
Reinitiation of consultation may occur formally or informally, depending on the likelihood of new species or critical habitat impacts, and must be requested by the action agency—though the FWS or NMFS may suggest that the action agency reinitiate consultation.
Irreversible and Irretrievable Commitment of Resources
Section 7(d) limits the project activities that may proceed after the Services initiate or reinitiate consultation. It prohibits federal action agencies and project owners from making any irreversible or irretrievable commitment of resources that has the effect of foreclosing the formulation or implementation of reasonable and prudent measures deemed necessary to avoid jeopardy or adverse modification. Non-jeopardizing activities (i.e., those not expected to cause take) may therefore proceed during the consultation and reinitiated consultation processes.
In some circumstances, the action agency may choose to prepare a Section 7(d) determination that identifies the activities that may proceed during consultation. Oftentimes, an action agency will solicit technical assistance from FWS or NMFS when developing a 7(d) determination. While the Services typically welcome such requests, they generally do not review or approve final Section 7(d) determinations.
Property owners and developers should consider applying for (but are not required to) an incidental take permit under Section 10 of the ESA for private activities that do not require federal permits and are reasonably certain to take listed fish and wildlife to ensure that their activities comply with the ESA. (An incidental take permit is not necessary for private activities that are reasonably certain to affect listed plant species as the ESA does not prohibit their take.) An incidental take permit, which must be supported by an applicant-prepared habitat conservation plan (HCP), authorizes a specified amount of take to provide the property owner with greater certainty and flexibility.
Incidental take permits further benefit property owners and developers by providing assurances that—in the event that unforeseen circumstances arise—the Services will not require the commitment of additional land, water, or financial compensation or further restrict the use of land, water, or natural resources beyond the level agreed to in the HCP without the property owner’s consent. The Services honor these “No Surprises” assurances so long as the project owner implements the terms and conditions of the HCP, incidental take permit, and any other associated documents in good faith.
Habitat Conservation Plans
HCPs are a key component of an application for an incidental take permit and become binding following the issuance of the permit. They are a detailed plan of development that ensure the impacts of the authorized incidental take are adequately minimized and mitigated. Each HCP must address the following:
HCPs need not be limited to listed fish and wildlife species—they may cover any species regardless of listing status so long as at least one fish or wildlife species is listed as endangered or threatened. Property owners and developers therefore should consider including candidate species or species proposed for listing in HCPs so that they can receive incidental take authorization for those species once the listing takes effect. Property owners and developers must recognize, however, that this approach may require them to implement minimization and mitigation measures that might not be otherwise required.
Property owners and developers are encouraged to engage a consultant and regularly meet with the FWS or NMFS when developing an HCP. Drafting the HCP is an iterative process that involves negotiating its size and scope with the Services.
Approving an Incidental Take Permit Application
The Services must comply with NEPA’s requirements before issuing an incidental take permit. HCPs with minor potential impacts to the environment might qualify for a categorical exclusion, meaning further environmental analysis is not required under NEPA. For HCPs with more significant potential effects on resources, the NMFS or FWS (or, to expedite the permit application process, the property owner with oversight by the Services) prepares an environmental assessment or environmental impact statement.
Incidental take permits also are subject to Section 7 of the ESA, meaning that the FWS or NMFS must consult with itself before issuing the permit. The FWS or NMFS issues a biological opinion evaluating the potential impacts of the HCP and determining whether it will result in jeopardy or adverse modification. Based on the Services’ long-standing position, property owners and developers may not cover only one listed fish or wildlife species in the HCP and rely on this intra-Service consultation to exempt take of other listed species with an incidental take statement.
The Services provide a 60-day period for public comment on the incidental take permit application and the NEPA analysis. Following this comment period, the Services issue the permit after finding:
The term of the incidental take permit can be of any duration and may be negotiated with the Services. But the agencies typically have a preference for permits of 10 years or less because they offer the greatest level of certainty of species impacts.
Landowners may be reluctant to improve habitats for listed or candidate species or take other actions that would encourage such species to inhabit their property and potentially limit the activities that can lawfully be conducted there. Candidate conservation agreements with assurances (CCAAs) and safe harbor agreements, however, encourage property owners to take beneficial actions for these species while providing assurance that they will not be subject to additional restrictions due to their voluntary conservation actions. Participating in a CCAA or a safe harbor agreement can therefore offer a net benefit to species and provide greater certainty in the project development process.
Candidate Conservation Agreement with Assurances
Property owners may participate in a CCAA when their property includes a candidate species, a species proposed for listing, or an at-risk species that may become a candidate in the near future in order to address concerns about the potential regulatory implications of listed species presence. By agreeing to a CCAA, landowners can obtain an enhancement of survival permit that provides that, if they implement the proactive conservation measures, they will not be subject to restrictions beyond those in the CCAA without their consent if the species becomes listed as endangered or threatened in the future. Examples of beneficial activities include restoring or enhancing habitat, expanding habitat connectivity, and controlling invasive plants or wildlife.
A CCAA may cover one or multiple species and need only address threats that property owners can control on their property. A CCAA may be developed in coordination with the Services in six to nine months or longer depending on its complexity.
Safe Harbor Agreement
Safe harbor agreements are voluntary agreements between the Services and property owners whose actions contribute to the recovery of a species already listed as endangered or threatened. In exchange for fulfilling the requirements of the safe harbor agreement by implementing actions (similar to those implemented under a CCAA) that aid in the recovery of the listed species, the property owner receives formal assurances through an enhancement of survival permit that the Services will not require additional management activities without the property owner’s consent. The enhancement of survival permit also authorizes incidental take of a species that may result from the conservation actions undertaken by the property owner under the safe harbor agreement.
As with CCAAs, a safe harbor agreement may be developed in coordination with the Services in six to nine months or longer depending on the complexity of the agreement.
Property owners and developers must understand the potential impacts of their activities on listed species as an unauthorized take of a listed fish or wildlife species may be subject to civil or criminal liability under Section 11 of the ESA. An individual or organization may receive fines or imprisonment, as well as the additional penalties described below, for each violation—meaning each individual of a listed animal species taken without authorization— of Section 9.
While the ESA imposes liability for Section 9 violations related to listed plant species, it does not prohibit the take of such plants; therefore, this section focuses on liability for the unauthorized take of animal species.
As of 2019, the ESA authorizes the FWS to assess the following civil penalties for each violation of the take prohibition:
A knowing act only requires a general intent to commit the act impacting the species. A defendant need not know that the species is endangered or threatened or intend to violate the ESA to be held liable.
The Services may criminally prosecute an individual or organization when it knowingly takes a listed animal species in violation of Section 9. Knowingly taking an endangered animal is a Class A misdemeanor that may result in imprisonment of no more than one year and/or a fine. Under the ESA, a fine for a Class A misdemeanor is no more than $50,000. The Criminal Fine Improvements Act increases this amount to $100,000 for an individual or $200,000 for an organization.
Knowingly taking a threatened animal is a Class B misdemeanor that may result in imprisonment of no more than six months and/or a fine. The ESA authorizes a fine of no more than $25,000 for a Class B misdemeanor, whereas the Criminal Fine Improvements Act authorizes a fine of no more than $5,000 for an individual or $10,000 for an organization. In a non-binding opinion, a federal district court has held that the penalty amount in the ESA controls over that in the Criminal Fine Improvements Act.4 However, this remains an unsettled issue.
The ESA further authorizes the federal government, as well as citizens, to seek additional remedies for the unauthorized take of listed animal species, including the following:
The ESA also gives the public the right to bring a citizen suit to enforce the statute’s provisions. Under Section 11(g), citizens may file a civil suit to:
A 60-day notice of intent to sue is a prerequisite to bringing a citizen suit. The notice requirement is intended to give the alleged violator or the Services time to redress the violation and potentially avoid the lawsuit.
Parker Moore is a principal in the Washington, DC office of Beveridge & Diamond PC, where he co-chairs the firm’s Natural Resources and Project Development practice group and its NEPA, Wetlands and ESA Section. Parker focuses his practice on successful project development, complex permitting, and regulatory compliance for a variety of industries. Before attending law school, Parker worked as a professionally-trained wetlands and species ecologist for a regional environmental consulting firm. Katrina Krebs is an associate in the New York office of Beveridge & Diamond PC, where she focuses her practice on project development and litigation. Katrina advises clients on project permitting and other activities implicating the NEPA, wetlands regulation, and the ESA. She also represents trade associations and businesses in complex environmental and toxic tort litigation. Before attending law school, Katrina worked for the U.S. Fish & Wildlife Service on several national wildlife refuges.
To find this article in Lexis Practice Advisor, follow this research path:
RESEARCH PATH: Real Estate > Commercial Purchase and 4. See United States v. Eisenberg, 496 F. Supp. 2d 578, 583 (E.D. Pa. 2007). Sales > Miscellaneous Ownership Issues > Practice Notes
For an overview of environmental impact reviews in the context of federal environmental statutes, see
> ENVIRONMENTAL IMPACT REVIEW IN REAL ESTATE TRANSACTIONS
RESEARCH PATH: Real Estate > Commercial Purchase and Sales > Due Diligence > Practice Notes
For guidance for developers contemplating the purchase or development of real property that contains or is likely to contain regulated wetlands, see
> WETLANDS REGULATIONS: CONSIDERATIONS FOR PROJECT DEVELOPERS
For a summary of state laws and regulations governing wetlands protection, see
> WETLANDS PROTECTION STATE LAW SURVEY
For a discussion of stormwater permitting and management requirements and information on the federal stormwater program, see
> STORMWATER PERMITTING AND MANAGEMENT REQUIREMENTS
1. 16 U.S.C.S. § 1531 et seq. 2. 16 U.S.C.S. § 1532(19). 3. https://ecos.fws.gov/ipac/. 4. See United States v. Eisenberg, 496 F. Supp. 2d 578, 583 (E.D. Pa. 2007).