U.S. Department of Defense - Missile Defense Agency

U.S. Department of Defense - Missile Defense Agency

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Environmental Reports

At the MDA, we recognize that the work we do can have an impact on the environment, so we actively strive to limit any effects on the environment. It is our environmental policy to comply with the National Environmental Policy Act (NEPA) and implementing regulations.

The NEPA process consists of an evaluation of the environmental effects of a federal undertaking including its alternatives. The NEPA process enables us to make informed decisions about the consequences of our projects, to inform the public about our findings, and to take appropriate actions.

In the process, there are three levels of analysis depending on whether or not an undertaking could significantly affect the environment. The basic levels of NEPA environmental review and documentation process include:

  • Categorical Exclusion (CATEX):  A category of actions that do not have, under normal circumstances, individually or cumulatively, a significant impact on the human environment or that have been previously studied and found to have no significant environmental impact.
  • Environmental Assessment (EA):  A concise public document that provides sufficient evidence and analysis for determining whether to prepare a Finding of No Significant Impact (FONSI) or an Environmental Impact Statement (EIS). If a federal agency anticipates that an undertaking may significantly impact the environment, or if a project is environmentally controversial, a federal agency may choose to prepare an EIS without having to first prepare an EA.
  • Environmental Impact Statement (EIS):  A public document prepared for actions that may have a significant impact on the quality of the human environment (air quality, land use, noise, etc.). A final EIS includes pertinent comments and information from the review process, and the process is completed by the publication in the Federal Register, and the issuance of a Record of Decision (ROD).

Recent Reports

NEPA Implementing Procedures and CATEXs

The MDA's final agency-specific NEPA Implementing Procedures and CATEXs were published in the Federal Register on Aug. 8, 2014.

The information that the MDA assembled while developing our CATEXs is described in the Administrative Record for Missile Defense Agency Proposed Categorical Exclusions.

Environmental Reports Archive

Please view all environmental reports from 1990 to the present in our archive.