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There are different deadlines for doing this, depending on whether you have a site or an app, and when it was published.


New websites (published on or after 23 September 2018) – by 23 September 2019

Older websites (published before 23 September 2018) – by 23 September 2020

Mobile apps – by 23 June 2021

About accessibility

Accessibility means making sure that your site, tool, or app can be used by people with the widest range of capabilities.