Our website has been built with accessibility in mind. Our goal is to maintain a level of accessibility that meets level AA of the Web Content Accessibility Guidelines 2.0.

We explain below:

  1. how you can customise your devices and web browsers to enhance your experience of this and other websites;
  2. the known accessibility limitations of this website;
  3. how to contact us to report an accessibility issue or suggest improvements.

Customising your experience

Many people will get the most accessible experience of this and other websites by customising their devices and web browsers to suit their individual needs. We provide below a link to a webpage from which visitors can obtain instructions how to change background colours, text and icon sizes, select a preferred font, magnify computer screens, use screen readers or "text to speech" applications and more. Visit the 'accessibility options' page of the U.S. federal government's website Disability.Gov for an updated set of links to these instructions for various operating systems and browsers.

Limitations of this site's accessibility

We aim to communicate clearly and as simply as possible but some of the articles on our site will require a reasonable level of subject matter understanding.

Let us know if you have difficulties using this site

If you find anything on the site difficult to use, or if have any suggestions on how we might improve the website, please email your feedback to This email address is being protected from spambots. You need JavaScript enabled to view it..

To help us resolve your difficulty, we recommend that you first refer to the guidance produced by the Web Accessibility Initiative on how to give effective feedback to website managers. Available on-line, this guidance is entitled 'Contacting Organisations about Inaccessible Websites'.