This site is designed with accessibility in mind. You may find the following of use while viewing the site:

The site has been built using cascading style sheets (CSS) and complies with WAI AA standard. The site can be read by screen readers or text browsers. If you require further help accessing the information on this site, or have comments relating to accessibility, please use our contact form.

You can change the font size using your browser.  For Internet Explorer, Firefox or Chrome: on the keyboard use Ctrl and the plus key or minus key to increase or decrease the size.
You can override colours used in websites - making all text black and all backgrounds white - by clicking 'tools', 'internet options...', 'accessibility...' and selecting 'ignore colors specified on web pages'.
Wherever possible, document downloads are provided as tagged .pdf files. This helps us keep file sizes down and makes documents more accessible. You can download free reader software if it isn't already installed on your computer by clicking the link below:
Get Adobe reader

If you use assistive technologies to read websites and documents, the Adobe website has some information on setting up and using your software.