Global Version 1.0
1 Jan 2021


We are committed to making the information and resources that it provides via the web accessible to all users. By using techniques to help users of assistive and adaptive technologies, we have provided one version of the site which everyone should be able to use. It is designed to be used by as many people as possible and is intended to meet at least level 2 (AA) of the W3C's Web Content Accessibility Guidelines (WCAG), and as far as possible to meet level 3 (AAA). For more information about the guidelines see: Web Content Accessibility Guidelines 2.0.

Through taking this approach we also comply with UK legislation including the Disability Discrimination Act (1995) as amended by the Special Education Needs and Disability Act (2001), which states that it is an offence to discriminate against a disabled person by treating him or her less favourably than others for a reason relating to their disability. In addition to this, we comply with Section 508, ADA Rehabilitation Act of 1973.

This means you are be able to:


Navigation of this site is primarily accomplished via a left hand navigation. Crumbtrail navigation menu is also available when viewing on handheld devices, just before the start of page content to help orient the user within the site, there is also a Sitemap available to allow rapid access to all pages on the site.


This site has been designed using relative Cascading Style Sheets to allow the user to override the default appearance of the site in a number of ways, the most basic of which is to ensure that users can change their choice of font size easily through their browser options. Most modern browsers allow you to increase the viewport. With a PC, simply hold the 'Ctrl' key and press '+' to increase or '-' to decrease the viewport size. With a MAC, do the same but with the 'apple' key rather than 'Ctrl'.


There are no areas of the website that use advanced Javascript techniques that are not compatible with screen-readers.


While wherever possible we have provided an HTML version of content on this website, some content is provided in Adobe Acrobat PDF format. For information on how to access this content with specialist browsers please visit