Environmental Permitting

Obtaining an environmental permit is often a critical element for the success of a project.  

Comprehensive Permitting 

Our thorough understanding of the intricacies of federal, state, and local ordinances and regulations allows us to facilitate timely permit approvals and clearances. Our ability to recognize the unique parameters of a project that may require natural resource agency coordination outside of a typical permit application and review process allows us to eliminate time consuming and costly surprises and delays.  

Each project requires specific permitting to address a multitude of environmental, social, and historic factors. Our experienced team of permitting experts, engineers, and planners collaborates throughout all phases of a project to identify potential permitting challenges, engineering tradeoffs, and impacts to construction costs and schedules that may arise due to regulatory review. 

Hoyle Tanner has extensive experience in the development of Categorical Exclusions (CEs), Environmental Assessments (EAs), and Environmental Impact Statements (EISs) according to National Environmental Policy Act (NEPA) guidelines and federal agency requirements. Our approach includes attention to detail, easy-to-read yet thorough graphic materials, and effective public presentations. We recognize the difficult balance between project needs and regulatory restrictions and are aware of the decisions and political processes required to complete a proposed project. 


  • Site Selection Evaluation 
  • Agency & Stakeholder Coordination and Consultation 
  • National Environmental Policy Act (NEPA) Compliance & Assessment (CEs, EAs, EISs) 
  • Federal, State & Local Permit Application Preparation 
  • Federal Energy Regulatory Commission (FERC) Filings 
  • Threatened & Endangered Species Identification, Assessment & Permitting 
  • Section 106 National Historic Preservation Act Surveys, Studies, Assessments, Clearances 
  • Wetlands Delineation 

Town of Jackman

Rehabilitate, Extend, Widen Runway 13-31 & Obstruction Removal

Jackman, ME

View Project

Town of Peterborough

Main Street Bridge & US 202

Peterborough, NH

View Project

Massachusetts Department of Transportation

Webster Street (Route 16) Roadway Improvements

Douglas, MA

View Project

New Hampshire Department of Transportation

I-93 Pavement Rehabilitation

Thornton-Woodstock, NH

View Project

Town of Waterville Valley

Mad River Water Main Crossing

Waterville Valley, NH

View Project

NBD Solar Maine, LLC

Maine Photovoltaic (PV) Sites

Pownal, ME

View Project

City of Keene

Patricia T. Russel Park

Keene, NH

View Project

Rehabilitate, Extend, Widen Runway 13-31 & Obstruction Removal Jackman, ME

Main Street Bridge & US 202 Peterborough, NH

Webster Street (Route 16) Roadway ImprovementsDouglas, MA

I-93 Pavement Rehabilitation Thornton-Woodstock, NH

Mad River Water Main Crossing Waterville Valley, NH

Maine Photovoltaic (PV) SitesPownal, ME

Patricia T. Russel ParkKeene, NH

From the blog

Learn about ongoing projects and the innovative processes we employ for our clients.