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We are committed to providing websites that are accessible to everyone. We aspire to comply with World Wide Web Consortium (W3C) Web Content Accessibility Guidelines 2.0. to make our digital properties more accessible to users with disabilities.


Some of the information on our website is in Portable Document Format (PDF). You will need Adobe Acrobat Reader to read PDF files. Adobe Acrobat Reader can be downloaded free of charge from the Adobe website. If you would like a publication in an alternative format, please email

Guidance on using this website

You can change the way this website looks to suit your needs. The settings available differ from browser to browser, but most browsers offer some or all of the following:

Text size

You can change the text size in your browser settings:

You can change the text size in your browser settings:

On a PC:

  • Hold down the 'Ctrl' key and press '+' to enlarge.
  • Hold down the 'Ctrl' key and press '-' to reduce.
  • To reset hold down 'Ctrl' and press '0'.

On an Apple Macintosh computer hold the 'Cmd' (Apple) key instead of 'Ctrl'.

Browser accessibility options

Each browser has different methods for font size, formatting, and screen colour options:


Where appropriate, images on this site are accompanied by alternative text which describes the image or its function. This alternative text (ALT text) is generally visible only when the browser’s automatic image loading feature is turned off.

Get in touch

If you are experiencing difficulties accessing the site, or have any comments, please do not hesitate to contact us at

Need more help?

For more information and help on accessibility and changing your browser settings please visit the following websites: