Virginia Field Office
Northeast Region
Endangered Species: Project Reviews in Virginia Project Review Steps


If the Northern Long-Eared Bat (NLEB) appears in your Official Species List generated from IPaC, use the “assisted determination key” (Dkey) for the NLEB 4(d) rule available in IPaC. When a species has a 4(d) rule, it means there is a specific set of prohibited activities tailored to the needs of that species. The assisted determination key will take you through the specific set of prohibitions for NLEB to help you reach an accurate determination for that species.

If NLEB is the only species or critical habitat on your Official Species List, you have utilized the Dkey, and the result indicates your project may rely on the Service’s January 14, 2016 Final 4(d) Rule, you do not need to submit anything to this office.

If there are additional species or critical habitat on your Official Species List, submit the project (including the verification letter generated by the IPaC assisted determination key for the NLEB) to complete consultation for the additional species/critical habitat.

Example of how to fill out the ESA Section 7 Determination Table for NLEB if you are relying on the 4(d) rule:

Species/Resource Name

Species/Habitat Presence in Action Area

Sources of Info

ESA Section 7 Determination

Project Elements that Support Determination

Northern long eared bat



Covered by 4(d) Rule


The NLEB Winter Habitat and Roost Tree map is available through the Virginia Department of Wildlife Resources (VDWR) to help you determine if your project is near NLEB habitat.

National Websites

Information on Section 7 consultation for NLEB.
Information on the NLEB listing and 4(d) rule.

Voluntary Conservation Measures

We encourage all Federal agencies to fulfill their section 7(a)(1) obligations by carrying out the conservation measures listed below. We also encourage non-Federal project proponents to implement the following conservation measures.

  • Perform NLEB surveys according to the most recent summer survey guidelines.
  • Conduct tree removal activities outside of the NLEB pup season (June 1-July 31) and/or the active season (April 1 - November 14).
  • Avoid clearing suitable spring staging and fall swarming habitat within a 5-mile radius of known or assumed NLEB hibernacula during the spring staging and fall swarming season (April 1-May 14 and August 16-November 15).
  • Manage forests to ensure a continual supply of snags and other suitable maternity roosts trees.
  • Conduct prescribed burns outside of the pup season (June 1-July 31) and/or the active season (April 1 - November 14). Avoid high-intensity burns (causing tree scorch higher than NLEB roosting heights) during the summer maternity season to minimize direct impacts to NLEB.
  • Perform bridge repair, retrofit, maintenance, and/or rehabilitation work outside of the NLEB active season (April 1 - November 14) in areas where NLEB are known to roost on bridges or where such use is likely.
  • Do not use military smoke and obscurants within forested suitable NLEB habitat during the pup season (June 1-July 31) and/or the active season (April 1 - November 14).
  • Minimize use of herbicides and pesticides. If necessary, spot treatment is preferred over aerial application.
  • Evaluate the use of outdoor lighting during the active season and seek to minimize light pollution by angling lights downward or via other light minimization measures.
  • Participate in actions to manage and reduce the impacts of white nose syndrome (WNS) on NLEBs. Actions needed to investigate and manage WNS are described in a national plan the Service developed in coordination with other state and Federal agencies.


Continue to Step 3c.


Online Project Review Introduction
Step 1: Description of Action
Step 2: Action Area
Step 3a: Official Species List
Step 3b: Northern Long-Eared Bat
Step 3c: Critical Habitat
Step 4: Suitable Habitat
Step 5: Determinations
Step 6: Project Review Package

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Last updated: November 29, 2021