Accessibility Statement on huge portals
I have never seen any huge portals, corporations pages, which have clean HTML and full CSS layout. In another words which was accessible. But, most of the portals have a page called: accessibility statement
or something like this, where we may find information about font resizing, inverting colors on the page, and so on.

I found accessibility statement on bbc.co.uk page. I think it is good example, what such page should contained. I talk about content only, code looks like…
So, what do you think about it?