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This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

January 19, 2021 Snapshot

You have reached the help page for the January 19, 2021 Web Snapshot. This is not the current EPA website. To navigate to the current EPA website, please go to

What is included in the Web Snapshot?

The Web Snapshot consists of static content, such as webpages and reports in Portable Document Format (PDF), as that content appeared on EPA's website as of January 19, 2021.

What is not included in the Web Snapshot?

There are technical limitations to what could be included in the Web Snapshot. For example, many of the links from EPA's website are to databases that are updated with new information on a regular basis. These databases are not part of the static content that comprises the Web Snapshot. Links in the Web Snapshot to dynamic databases will take you to the current version of the database. Searches there will yield the latest data, rather than the data that would have been returned for a search conducted on January 19, 2021. Alerts should appear when you are leaving the Web Snapshot and linking elsewhere.

Contact us and other forms have all been disabled.

Links may have been broken in the website as it appeared on January 19, 2021. Those links will appear as broken on the Web Snapshot. Likewise, links which may have been working on January 19, 2021 but are now no longer active will appear as broken links in the Web Snapshot.

Finally, certain dynamic collections of content were not included in the Snapshot due to their size. Those collections remain available on the current EPA website at the following links:

Search the January 19, 2021 Snapshot