Web Content Accessibility Guidelines (WCAG) 2.0
Public bodies should achieve AA level conformance with WCAG 2.0 guidelines to comply with the statutory Code of Practice on Accessibility of Public Services and Information provided by Public Bodies (2006).
Make text easy to read and understand
Always use the simplest and clearest language possible. Avoid technical language that a member of the public may not understand. If you must use technical language, clearly explain what it means in plain English.