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Environmental Law Research Guide: Environmental Protection Agency (EPA)

EPA Regional Offices

The EPA has 10 regional offices that assists is executing EPA programs for those states and territories within each region. California is part of Region 9, also known as the Pacific Southwest Office, located in San Francisco and includes Arizona, California, Hawaii, Nevada, Pacific Islands and 148 Tribal Nations.

EPA National Library Network

The EPA National Library Network is an excellent when you are looking for hard find EPA-related documents. Generally, Regional Libraries are open to the public, but you can also search for materials in the EPA National Library Catalog or contact them via their website

EPA Overview

The Environmental Protection Agency is a federal agency established in 1970 under President Nixon with the mission to protect human health and the environment. As resource for laws and regulations the EPA website is incredibly useful offering resources based on a specific act, or by topic.

Major Environmental Acts

The EPA offers summaries of well-known environmental laws. For each act, the EPA has written a summary and provides links to the text of the law, related regulations, and other useful information. These summaries are an excellent resource when starting research.

EPA Twitter

While the EPA is operating under a social media blackout, please visit the our California page to view tweets by CalEPA.