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Env. Protection - Resources

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Use the Public Portal
to complete an ER Preliminary Assessment.
Request a review
for proposed development activities, planning and land management projects.
Receive training
for DNR staff and those seeking NHI license agreements.
Conduct reviews
by becoming a Certified ER Reviewer.
Access NHI data
for research and planning purposes.
Contact information
For more information about the ER Review Program, please consult the following list:
ER Review staff contacts

Endangered Resources (ER) Review

COVID-19 Update

All Wisconsin state park system properties are now operating 6 a.m. to 11 p.m. seven days a week. An annual park sticker or trail pass is required to visit state parks and trails. Annual park stickers only, can now be purchased online. State trail and other passes can still be purchased over the phone by calling 1-888-305-0398 from 8 a.m. to 4 p.m., seven days per week. Buy before you go: annual passes are NOT available for purchase at individual properties. Visitors must have an annual admission sticker adhered to their vehicle or proof of purchase for entry.

All campgrounds, restrooms, water fountains, buildings, observation towers and playgrounds are closed at all state parks and forests. For more information, please see:

Properties may be limiting admission based on capacity. Please make sure to seek out current property information on our website before visiting:

Thank you for your patience during the COVID-19 public health emergency. Endangered Resources Review staff are still available to serve you; however, currently we are working remotely. Hard copy postal mail is checked periodically, we are recommending you submit requests electronically via email to ensure the fastest response. Please email requests to

An ER Review is a screening of a proposed project area for potential impacts to endangered resources like rare plants, animals and natural communities. They are conducted for a wide variety of land management, development and planning projects. A general rule of thumb is any land or water-disturbing project should be reviewed for impacts to rare species.

Projects that don't need a review

You don't need a review if:

  1. your project is covered by the Broad Incidental Take Permit/Authorization for no or low impact activities; or
  2. your Preliminary Assessment from the Public Portal returns a result of "no actions required/recommended."

How to get a review

Choose from one of the options below.

  • Request a standard review from the ER Review Program by submitting an Endangered Resources Review Request [PDF]*. Submit a NHI Public Portal ER Preliminary Assessment printout with your review request. Please read “what is an ER Preliminary Assessment and what do the results mean?” on the public portal website to see if a formal review is required.
  • Request an expedited review from the ER Review Program.
  • Request a review from a certified reviewer [PDF].

*Having trouble viewing this form in your internet browser? Save it to your desktop by right-clicking the link and then choosing "Save target as..." or "Save link as..." Then open the desktop file with Adobe Reader. You can also try opening the form in a different browser, like Internet Explorer. For Mac users: to right-click with a single button mouse, hold the control key while clicking.


The minimum fee for a standard ER Review is $75, which covers one hour of staff time to complete the ER Review. Each additional hour required to complete the ER Review is $75 (per NR 29, Wis. Admin. Code). Please do not send payment with your ER Review request form; you will be invoiced upon completion of the review.

Help endangered species banner.

Note: We make every effort to provide ER Reviews to you in a prompt and timely manner. However, please be aware that you are not exempt from compliance with state and federal endangered species laws if we are not able to respond within your project's specific timeframe. We strongly encourage ER consultation early in the project planning stage to allow adequate time to identify and address any potential impacts to endangered resources.

Last revised: Friday March 27 2020