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Environmental permitting

Our experience of development in many sectors and countries, combined with our breadth of environmental expertise, means we understand how to deliver successful projects that protect the environment and that fully comply with the relevant legislation and regulations.

"Our experts advise governments and regulatory bodies around the world on the development and application of regulatory systems."

Infrastructure and building projects accomplish a variety of goals, which can include providing additional water supply capacity, relieving traffic congestion, or constructing a multiple-use development. No matter what the objective is, the project may have adverse impacts on other components of the natural or man-made environment.

Environmental impact assessments

Environmental impact assessments comprehensively identify and assess the impacts of a given project, and evaluate options to reduce those impacts. In this way, the benefits that accrue from the project’s implementation can be weighed against inevitable adverse impacts.

NEPA compliance

Mott MacDonald has developed extensive depth of expertise in environmental compliance and permitting under the National Environmental Policy Act (NEPA), including Environmental Impact Statements, Environmental Assessments, and Categorical Exclusions.

Our personnel are well versed in many resource areas of analysis associated with permitting processes under NEPA, as well as under various state regulated processes (such as "mini NEPA”) and state and federal environmental requirements.

Clients in North America

We currently serve clients that include federal and state agencies, departments of transportation (DOTs), municipalities, counties, utility authorities, and private companies. Our expertise includes environmental conflict resolution associated with environmental permitting.

Risk assessment

We conduct environmental audits and risk assessments of operations and sites that are subject to environmental permitting, and so help our clients identify high-risk issues before they result in a breach of a permit or legislation.


The list of potential permits, authorizations, and consents, their terminology and the applicable regulations varies widely. We have thorough knowledge of the environmental permitting framework in many countries across the globe.

We can help clients obtain permits in areas such as these:

  • Air quality and emissions to atmosphere
  • Archeological conservation
  • Coastal, marine, and fisheries development
  • Urban development and zoning
  • Dredging
  • Flood defense, stormwater management, and land drainage
  • Historical buildings and urban conservation areas
  • Compulsory land purchase
  • Mineral extraction
  • Solid waste management and disposal
  • Water abstraction and wastewater treatment and discharge
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