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Access Instructions for Users with Disabilities

NCAM is committed to ensuring that its site is accessible to all users. This Web site conforms to existing recommendations and standards and has been tested with various assistive technologies. If you encounter a problem accessing NCAM's site, or if you would like to provide feedback on NCAM's site, please contact us using the preceding links. To reach NCAM staff with questions about other issues, view our complete contact information.

Support for W3C Recommendations and Section 508 Standards

During the development process, our authors followed the W3C's Web Content Accessibility Guidelines 2.0 to ensure that the site would be accessible. The site uses valid XHTML 1.0 Transitional and CSS 2.0, and it also meets the standards set in the Web-based applications section of the Section 508 standards.

Valid CSS! Valid XHTML 1.0! Web Access Symbol (for people with disabilities)

Alt text

All images on this site are accompanied by brief alt text identifies the image or its function. If you are using a graphic browser, alt-text tags are visible only if the browser's automatic image-loading feature is turned off.

Captioned and Described Movie Clips

NCAM captions all movie clips on its site using either CCforFlash or MAGpie, and describes all clips using MAGpie. CCforFlash and MAGpie are free software tools created by NCAM. For more information about accessible multimedia, and how you can create your own, please visit NCAM's Tools and Guidelines page.


All text hyperlinks are written so that they make sense when read out of context.


Parts of the NCAM site utilize JavaScript. In every instance, device-independent event handlers have been implemented so that use of the mouse is not required. Additionally, all content and functionality are available even if scripting has been disabled in the browser.


Where tables are used for the presentation of data, table cells are associated with headers to facilitate navigation with screen readers. Also, each data table has a summary which provides additional information about the table's contents.