Information about browser and document support.
We aim to be browser and operating system neutral. This site has been designed and tested to work on the latest versions of all the major browsers (Internet Explorer 11, Google Chrome 63, Firefox 58 and Safari 11). If you're using an older browser we strongly recommend that you upgrade it as soon as possible.
Upgrading your browser will improve the appearance of websites, significantly reduce the chances of your computer becoming infected with malware and protect your personal information.
This site includes links to PDF documents. To read a PDF document you need to have the Adobe Acrobat reader installed.
Download a Portable Document Format (PDF)(external link) reader from Adobe website.
If you have any difficulty displaying a PDF document, please contact us for a paper copy.
This site includes links to Word documents. If you have any difficulty opening or displaying a Word document, please contact us for a paper copy.
We use short URLs to help you find information on our site. These may appear on documents or in advertising to make it easier to get to specific pages on the site.