Our website follows the accessibility guidelines of Web Content Accessibility Guidelines (WCAG) 2.0 Level AA.
WCAG 2.0 is an industry standard which covers a wide range of recommendations for making website content more accessible. Following these guidelines helps to make our site accessible to a wider range of people with disabilities, including blindness and low vision, deafness and hearing loss, learning disabilities, cognitive limitations, limited movement, speech disabilities, photosensitivity and combinations of these. The guidelines provide tests to ensure that web content is “perceivable, operable, understandable and robust”.
Text size can be increased using the Change text size buttons at the top of the page; if additional increases are needed, please use the “zoom” controls in your browser to increase the size of the entire page.
Skip to content:
At the top of every page there are links to skip to the main content, the main navigation, and where applicable, the left navigation. To see these links, press Tab at the top of each new page.
We continue to work on improvements to the accessibility of our site. If you have any suggestions or concerns about the usability or readability of this site, please let us know by contacting
Last Updated: 03/01/12