Accessibility statement

This accessibility statement applies to It includes a website, and an associated web application.

The EDA website and web application are run by the NC3Rs and Certus Technology Associates Limited We want as many people as possible to be able to use the website and the web application and have therefore made the text as simple as possible to understand throughout. 

For the website this means you should be able to:

  • change colours, contrast levels and fonts
  • zoom in up to 300% without the text spilling off the screen on all pages except the homepage
  • navigate most of the website using just a keyboard

However, due to the necessary functionality required for the EDA web application to work (e.g. drag and drop) we are afraid that this is not fully accessible. 

AbilityNet has advice on making your device easier to use if you have a disability.


The EDA website and web application predominantly use Adobe's portable document format (PDF) for document downloads, but in some cases may elect to use other formats. 

To view PDF documents, you will need to install Adobe's Reader software. This is simple to do, just visit: and follow the download instructions. This software "plug-in" will enable you to view PDF documents available on both the EDA website, as well as from the internet as a whole. Certain browsers are also capable of viewing PDF files directly.

Reporting accessibility problems with this website

We’re always looking to improve the accessibility of this website. If you find any problems not listed on this page or think we’re not meeting accessibility requirements, contact:

Technical information about the EDA's accessibility

The National Centre for the Replacement, Refinement & Reduction of Animals in Research (the NC3Rs) is committed to making the EDA website accessible. We aim to comply with WCAG 2.1 AA standard accessibility checkpoints as established by the World Wide Web Consortium's (W3C) web accessibility initiative. 

However, due to the necessary functionality required for the EDA web application to work, it is not fully accessible.

Compliance status

The EDA website and web application are partially compliant with the WCAG 2.1 AA standard accessibility checkpoints. The exemptions are listed below.

  • The use of white on a blue background in line with our branding is not to a compliant ratio currently. We continue to work towards this standard and will address this issue in future branding reviews.

Non-accessible content

The content listed below is non-accessible for the following reasons

Navigation and accessing information

  • There is no way to skip the repeated content in the page header (for example, a ‘skip to main content’ option) in the EDA web application.
  • It’s not possible for users to change text size without some of the content overlapping.
  • Video streams do not have captions.

Interactive tools and transactions

  • The EDA web application is not accessible.
  • The interactive web application cannot be used with a keyboard. For example, using the web application involves 2-D positioning and drag and drop, which cannot be performed without a mouse or stylus.
  • The interactive web application is also harder to use when zoomed in.

We have assessed the cost of fixing the issues with navigation and accessing information, and with interactive tools and transactions. Taking into account user numbers, the very specific purpose of the EDA website including the interactive tool (the EDA web application), and development resources available, we believe that making the EDA website and web application accessible now would be a disproportionate burden within the meaning of the accessibility regulations. 

Preparation of this accessibility statement

This statement was prepared on 17 September 2020. It was last reviewed on 17 September 2020.

This website was last tested on 21 August 2020. The test was carried out by Certus Technology Associates Limited for the NC3Rs.