Web accessibility statement

Valid XHTML 1.0!

Standards compliance

  • All pages on this site should comply with all priority 1, 2 and 3 guidelines of the W3C Web Content Accessibility Guidelines as well as US Government Section 508 Guidelines.
  • All pages on this site should validate as XHTML 1.0 Strict.
  • All pages on this site use structured semantic markup. h1 tags are used for main titles, h2 tags for subtitles (and so on). For example, on this page, JAWS users can skip to the next section within the accessibility statement by pressing ALT+INSERT+3.


  • All content images used in this site should include descriptive alt tags. Purely decorative graphics include null alt tags.
  • Complex images include longdesc tags or inline descriptions to explain the significance of each image to non-visual readers.

PDF files

You might come across PDF files on this site. To facilitate use with assistive technologies, you can use an online PDF to HTML converter to view the files as web pages.

Visual design

  • This site uses style sheets for visual layout. The use of tables for layout is minimal.
  • If your browser or browsing device does not support style sheets at all, the content of each page should still be readable.
  • Text resizing buttons are available at the top of each page. In addition, all modern browsers enable page resizing using the Ctrl+ and Ctrl- key combinations.
  • Alternative visual contrast schemes can be selected using the buttons at the top of each page