Nolo's Plain-English Law Dictionary
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- Environmental Impact Report (Eir)
- A detailed, written analysis of all the effects that a land development or construction project would have on the local environment, such as on the air quality, noise levels, population, traffic patterns, fire danger, endangered species, archeological artifacts, and community beauty. Many states require submission of such reports to local governments, with a process for public comment, before a development or project can be approved.