tunnelbuilder is committed to meeting the requirements of the Disability Discrimination Act and makes every effort to ensure its communications are accessible to those with special needs, including those with visual, hearing, cognitive and motor impairments.

We have strived to make this website adhere to priority 1, 2 and 3 guidelines of the W3 Web Content Accessibility Guidelines. The pages use structured semantic markup where necessary. Screen reader users can skip through the header hierarchy by using ALT+INSERT+2, ALT+INSERT+3 and so on.

Links have been written to make sense out of context. Many browsers (such as JAWS, Home Page Reader, Lynx and Opera) can extract the list of links on a page and allow you to browse the links separately from the page.

Decorative and functional images feature null ALT attributes. Other images on the site include descriptive ALT attributes.

Foreground and background colours contrast well throughout the site. Where colour is used (to aid navigation), it is not a required feature to use the navigation system.

The site is free of frames and uses a cascading style sheet for visual layout. Tables are used for tabular data, but we have avoided using them to dictate the layout of a page.

The stylesheet uses relative font sizes and is written to display pages correctly in most commonly-used browsers. In early versions of browsers and browsing devices that do not support stylesheets at all, the flow of the content has been tested to ensure it entirely retains its sense.