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Web Privacy & Accessibility

Use of Measurement and Customization Technology

This website uses measurement and customization technology known as a "cookies." Cookies are used to remember a user's online interactions with a website or online application in order to conduct measurement and analysis of usage or to customize the user's experience. 

There are two kinds of cookies used on the website:

  1. A single-session cookie (Tier 1) is a line of text that is stored temporarily on a user's computer and deleted as soon as the browser is closed.
  2. A persistent or multi-session cookie (Tier 2) is a small text file that this website places on your web browser so it can gather an anonymous summary of demographic information and remember your browser when it is used to visit our site again. Use of these cookies does not involve the collection of a visitor's personally identifiable information (PII). These cookies uniquely identify a browser on a computer, but never a person. In other words, if the same person uses Chrome and Internet Explorer, two unique browser cookies will be assigned, one for each browser, so that person will be counted as two different visitors because visitors are based on browsers, not computers or persons.

Cookies are enabled by default to optimize website functionality and customize user experience. Users can choose not to accept the use of these cookies by changing the settings on their local computer's web browser. General instructions on how to opt out of cookies can be found by browser below. Opting out of cookies still permits users to access comparable information and services; however, it may take longer to navigate or interact with the website if a user is required to fill out certain information repeatedly. 

Changing Cookies Settings in Various Browsers

Desktop Browsers Mobile Browsers

Firefox Version 3.5 or Later

  • In the "Tools" menu, select "Options"
  • Under the "Firefox will:" dropdown, select "Use custom settings for history"
  • Uncheck the "Accept Cookies from Sites" box to block all cookies Or
  • Click the "Exceptions" button to enter specific websites that you wish to allow/disallow to set cookies

Android Browser

  • From within the Android browser, hit the menu key.
  • Select "More"
  • Select "Settings"
  • Uncheck the "Accept Cookies" option to block all cookies

Chrome version 4 or later

  • Click the wrench icon in the top right of your browser window
  • Select "Options"
  • Click the "Under the Hood" tab
  • Click the "Content Settings" button
  • Click the option to "Block sites from setting any data" to block all cookies Or
  • Click the "Exceptions" button to enter specific websites that you wish to allow/disallow to set cookies

Mobile Safari

  • From your home screen on your iPhone or iPad, click "Settings"
  • Click on "Safari"
  • Click on "Accept Cookies"
  • Select "Never" to block all cookies

Internet Explorer version 6 or later

  • In the "Tools" menu, select "Internet Options"
  • Click the "Privacy" tab
  • Move the "Settings" slider up or down to adjust your cookie acceptance settings (moving the slider all the way to the top will block all cookies) Or
  • Click the "Sites" button to enter specific websites that you wish to allow/disallow to set cookies

Opera Browser

  • From within the Opera browser, hit the Opera icon.
  • Click on “Settings”
  • Scroll to “Privacy” and select “Cookies”
  • Click “Disabled"

Safari version 4 or later

  • Click the geared wheel icon in the top right of your browser window.
  • Select "Preferences"
  • Select the "Security" tab
  • Under "Accept Cookies:", click the "Never" option to block all cookies


Specific Technologies/Vendors uses a customized Google Analytics tool through GSA’s Digital Analytics Program (DAP), as required by the Office of Management and Budget’s November 8, 2016 memorandum ‘Policies for Federal Agency Public Websites and Digital Services’. DAP’s analytics solution provides access to a common set of web metrics like page views, unique users, mobile vs. desktop visits, average time on page, bounce rate, number of downloads, etc. as well as dimensions like location, browser, and operating system of visitors. The DAP analytics tool meets strict security guidelines. The code has undergone multiple security scans, no personally identifiable information is collected, and IP addresses are anonymized. The National Geospatial-Intelligence Agency does not gather, request, record, require, collect or track any Internet users' PII through these processes.


Opt-Out Notice

Google Opt-Out:

Visitors to have the ability to prevent their data from being used by Google Analytics via the Google Analytics opt-out browser add-on.

If you would like to opt-out, download and install the add-on for your web browser. The browser is designed to be compatible with Chrome, Internet Explorer 11, Safari, Firefox, and Opera. To learn more about the opt-out and how to properly install the browser add-on, please visit .

Matomo Opt-Out:

Visitors to have the ability to prevent their data from being captured by Matomo analytics via the Matomo opt-out iframe.

This opt-out option is available here.  By unchecking the box titled "Opt-out of website tracking", you may prevent this website from aggregating and analyizing the actions you take on

Use of Third-party Websites and Applications

Third-party websites and applications that are not owned, operated, or controlled by the Department of Defense are integral to Internet-based operations across the DOD. These capabilities include social networking services, wikis, photo- and video-hosting services, data mash-ups, and so forth. A list of all Defense Department official pages across various social media networks can be found at 

Links to External Sites and other NGA platforms and pages may link to websites created and maintained by other public or private organizations and individuals. These external sites are identified by the [insert icon here] icon. When you follow a link to an external site, you are leaving and are subject to the external site’s privacy and security policies. We do not control or guarantee the accuracy, relevance, timeliness, or completeness of information contained on an external site.

The National Geospatial-Intelligence Agency (NGA) neither endorses nor guarantees in any way the external organizations, services, advice, or products included in these website links. Furthermore, the NGA neither controls nor guarantees the accuracy, relevance, timeliness or completeness of the information contained in external website links. It is the responsibility of the user to evaluate the content and usefulness of information obtained from other sites.​

Accessibility Statement

The National Geospatial-Intelligence Agency is committed to making every document on its Website accessible to the widest possible audience, including persons with visual disabilities. The agency's new website ensures NGA meets or exceeds the requirements of Section 508 of the Workforce Investment Act of 1998 .

Section 508 requires that federal agencies' electronic and information technology is accessible to people with disabilities, including employees and members of the public. Section 508 establishes requirements for any electronic and information technology developed, maintained, procured, or used by the Federal government.

Information pertaining to the Department of Defense (DoD) Section 508/Accessibility Policy can be viewed on the DoD Chief Information Office page at .

PDF Documents

Many of the documents on our Web server are in basic HTML format. These formats are generally accessible to persons using screen reading software. We also have a large number of documents as Adobe Acrobat PDF (Portable Document Format) files. Persons using screen reading devices generally cannot directly read documents in PDF format. Adobe Systems, Inc., provides a free translation service through their Access Web pages which will translate PDF files to Web pages (HTML documents). This can be used in one of three ways:

  1. The user can go to the Access server and fill out a form. When this form is submitted, the server will go get the PDF document, translate it, and return it to the user.
  2. The user can send an email message to the Access server, giving the address of the document to be translated. The server will then get this document and translate it to either a Web page or a text (ASCII) document. Note that this is the only one of the three options that also gives the ability to produce a text document from the PDF file. (Click here for Adobe Instructions)
  3. For systems which are not connected to the Internet, Adobe has a free downloadable accessibility plug-in, called Adobe Access, for use with the latest versions of the Adobe Acrobat Reader for Microsoft Windows 3.1, Windows 95/98, or Windows NT. This plug-in helps to overcome some of the problems of reading PDF documents with screen readers, but for systems with Internet access, Adobe recommends using the on-line Access translation service instead.

These methods of making PDF files accessible are adequate for many documents. However, they are not adequate for PDF documents in which content is included in graphics files or for especially complex formatting. In these cases, we provide an alternative format for use with screen readers -- an HTML version -- where possible.

We have one general exception to our policy of making accessible versions available for all PDF documents. We are using the Adobe Acrobat PDF format as a means of distributing Freedom of Information Act (FOIA) documents. These are electronic images of the forms which are intended to be printed and used as any other paper form, and do not lend themselves to any non-graphical representation.