We are committed to ensuring that people with disabilities can access this site and its information. Every effort has been made to ensure that this website meets AA-standard accessibility criteria according to the World Wide Web Consortium (W3C).

Text size

You can make the text on this site larger by pressing the ‘ctrl’ and ‘+’ keys, or smaller by pressing the ‘ctrl’ and ‘-‘ keys.

Document formats

Wherever possible, documents are provided in both PDF and HTML format.

To open, print and/or save PDF files, you will need to use Adobe Acrobat Reader. If you do not already have this tool, you can download Acrobat Reader for free. The Adobe website also provides tools and resources that can help people who use speech readers to read the content of PDF documents.

Alternative formats

Some parts of this site might not meet your specific accessibility needs. If you have any problems accessing information on the site, we can provide it to you in an alternative format. Please email us at with your request. More contact options are available on the Contact us page.