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MA Endangered Species Act (MESA) Regulatory Review

In order to protect rare species and their habitats we review projects & activities proposed within rare species habitat for potential impacts.

A primary responsibility of ours is to review any proposed projects or activities you may have in rare species habitat (Estimated or Priority Habitat). This is to protect rare species and their habitats.

We will review your plans to determine whether the project will impact state-listed rare species and their habitats. This ensures that you are in compliance with the Massachusetts Endangered Species Act and the Wetlands Protection Act.

What would you like to do?

Top tasks

MA Endangered Species Act (MESA) Overview  Regulatory Maps: Priority & Estimated Habitats 

All other tasks

How to file for a MESA project review   Request rare species information   Request a Pre-filing Consultation 

What you need to know

Exemptions from review for projects/activities in Priority Habitat  Rare species and the Wetlands Protection Act (WPA)   Habitat Assessments & Protocols  Forestry and rare species review  MESA Conservation & Management Permit Overview  Habitat management and rare species review 

More Information

Related Services

Additional Resources

321 CMR 10.00: Massachusetts Endangered Species Act
Natural Heritage Forms and Guidelines
Commercial Scientific Collection Permit Application (PDF 266.92 KB)
Image credits:  Blue spotted salamander (Bill Byrne).
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