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Website Accessibility
July 31, 2014

We continually strive to ensure the pages on this Web site are accessible to individuals with disabilities in accordance with Section 508 of the Rehabilitation Act. If you have any difficulty viewing any page with adaptive technology, please contact the webmaster for this site, or the Center Section 508 Coordinator.

The documents on our site are in various formats. Many are in ASCII or HTML format, accessible to people who use screen reading software and to those with other vision or mobility impairments. Generally, we use Hypertext Markup Language (HTML) to create pages and documents that are accessible to that segment of our customer base. In creating HTML documents, we follow Section 508 standards; for example, we include alternate text to describe graphics.

Currently, our website contains documents in Adobe Acrobat PDF file format. Most PDF files will be accessible to those who use assistive technology such as screen readers. Some legacy or software created PDF files may not be accessible. If you are experiencing difficulty reading any PDF files please contact the Help Desk Section508Help@nasa.gov  and we will be happy to send you an alternate version.

All applets, plug-ins, or other applications required by NASA webpages that are not included on the specific page are found as links from this page.

Most of these links are to non-government sources. NASA does not endorse any of these products; they are listed below for the convenience of our visitors. Address questions about the particular plug-in or file viewer to the respective vendor.


Website Accessibility Aids: Plug-ins and File Viewer

Adobe Reader
    Use Adobe Reader to read Portable Document Format (PDF) files.
    Download Adobe Reader
 Flash Player
    Use Adobe Flash player to view Video.
    Download Adobe Flash Player
Microsoft Word
    Microsoft offers Word file viewer and converter programs to enable those who do not have MS- Word or have another version of MS-Word to open and view MS-Word files.
    Download Word file Viewer
Microsoft Excel
    Microsoft offers Excel file viewer and converter programs to enable those who do not have MS-Excel or have another version of MS-Excel to view MS-Excel files.
    Download Excel file viewer
Microsoft PowerPoint
    Microsoft offers PowerPoint file viewer and converter programs to enable those who do not have MS-PowerPoint or have another version of MS-PowerPoint to view MS-PowerPoint files
    Download PowerPoint file viewer


If you feel we are not in compliance with Section 504 of the Rehabilitation Act of 1973 or the 1998 Amendment to Section 508 of the Rehabilitation Act of 1973, please follow the process outlined in NASA Procedural Requirement 2028.1A:  Nondiscrimination in Federally Assisted and Conducted Programs.

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Page Last Updated: July 31st, 2014
Page Editor: Brian Dunbar