On This Page:
- Disclaimer of Endorsement
- Copyright Status
- Disclaimer of Liability
- Exit Disclaimer
- Interacting with EPA Online
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Disclaimer of Endorsement
Mention of or referral to commercial products or services, and/or links to non-EPA sites does not imply official EPA endorsement of or responsibility for the opinions, ideas, data, or products presented at those locations, or guarantee the validity of the information provided. Mention of commercial products/services on non-EPA websites is provided solely as a pointer to information on topics related to environmental protection that may be useful to EPA staff and the public.
The U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce these documents, or allow others to do so, for U.S. Government purposes. These documents may be freely distributed and used for non-commercial, scientific and educational purposes. Commercial use of the documents available from the EPA websites may be protected under the U.S. and Foreign Copyright Laws. Individual documents on the EPA website may have different copyright conditions, and that will be noted in those documents.
Disclaimer of Liability
With respect to documents available from the EPA website, neither the United States Government nor any of their employees, makes any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.
The Exit icon denotes that you are leaving the EPA website and entering an external link or a third-party site.
EPA's official web site is www.epa.gov. EPA has provided this link because it provides additional information that may be useful or interesting and is being provided in a manner consistent with the intended purpose of the EPA website. Please note that EPA uses third-party sites to provide EPA content already on www.epa.gov in a different format.
EPA cannot attest to the accuracy of non-EPA information provided by these third-party sites or any other linked site. EPA is providing these links for your reference. In doing so, EPA does not endorse any non-government websites, companies or applications.
Also, please be aware that the privacy protection provided on the EPA.gov domain (EPA Privacy and Security Notice) does not apply to these third-party sites. To learn more about EPA and social media, please refer to& our social media page.
Information from the EPA website resides on numerous computer systems funded by the Agency. The use of the EPA websites may be monitored for computer security purposes. Any unauthorized access to the EPA website is prohibited and is subject to criminal and civil penalties under federal laws including, but not limited to, Public Law 99-474, the Computer Fraud and Abuse Act of 1986.
These geospatial data and corresponding cartographic materials have been approved for use by the U.S. Environmental Protection Agency (EPA) as advised by the EPA Geospatial Advisory Committee (EGAC). This approved release is on the condition that neither the EPA nor the U.S. Government may be held liable for any damages resulting from its authorized or unauthorized use. These data and any corresponding products, services, or materials do not necessarily represent the EPA’s official position or viewpoint, expressed or implied. These content items are not intended for use in establishing liability or calculating cost recovery statutes of limitations. They cannot be relied upon to create any rights, substantive or procedural, enforceable by any party in litigation with the United States or third parties. Additionally, although these data have been processed successfully on EPA computer systems, no warranty expressed or implied can be made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The Agency reserves the right to revise EPA-stewarded datasets pursuant to further analysis and review without public notice. Unless otherwise specified, geospatial data produced by the EPA is by default in the public domain and is not subject to domestic copyright protection under 17 U.S.C. § 105. Referenced data from non-EPA sources are neither inherently verified nor independently tested by the Agency in all circumstances. Permission to reproduce copyrighted items not produced by the EPA must be secured from the copyright owner. EPA strongly recommends careful attention be paid to metadata files associated with these data to better understand limitations, restrictions or intended use. The U.S. EPA shall not be held liable for improper or incorrect use of the data.
We encourage you to share your thoughts as they relate to the topic being discussed. We review comments according to the guidelines below. The views expressed in comments reflect those of the author and do not necessarily reflect the official views of the U.S. Environmental Protection Agency or the federal government. (For EPA guidance and policies about comments on regulations and dockets, please reference our Commenting on EPA Dockets page.)
We want to publish your comments, but we expect comments generally to be courteous. To that end, we have established the following guidelines with respect to the posting of comments, and we reserve the discretion not to post comments that are inconsistent with our guidelines .
We do not post comments that:
- contain obscene, indecent, or profane language;
- contain threats or defamatory statements;
- contain hate speech directed at race, color, sex, sexual orientation, national origin, ethnicity, age, religion, or disability; or
- promote or endorse services or products. (Note that non-commercial links that are relevant to the topic or another comment are acceptable.)
Copyrighted and other proprietary material should not be posted or submitted in any form unless permission to do so is clearly indicated. In posting his or her own comments or other work, a commenter grants EPA and anyone viewing the EPA website irrevocable permission to copy, distribute, make derivatives, display or perform the commenter's work publicly and free-of-charge.
Reporters are asked to send questions to the EPA Newsroom through their normal channels rather than by submitting questions here as comments.
We recognize that the internet is a medium unbound by regular business hours and your comments are welcome at any time. However, given the need to manage federal resources, reviewing and posting of comments will generally occur during regular business hours Monday through Friday. Comments submitted at other times will be reviewed and posted as soon as possible the next business day.
In some cases we ask you to provide your name and e-mail address, although providing either is optional. We request your name to make it easier to carry on a conversation. For this reason, we publish your name along with your comment. We ask for your e-mail address so that we can contact you if necessary. We do not publish e-mail addresses.
To protect your privacy, please do not include information (e.g., an e-mail address or phone number) in the text of your comment that identifies you.
Additional guidance as to how EPA regards privacy issues can be found within the Privacy and Security Notice.
Thank you for taking the time to read these guidelines. We encourage your participation in our discussion and look forward to an active exchange of ideas.