Do I need to use EM sizing for the layout to meet the WCAG 2.0 criteria?

Question

According to the WCAG 2.0, EM units should be used as font-size, to meet the WCAG 2.0 minimum criteria:

http://www.w3.org/WAI/WCAG20/quickref/Overview.php

But I could not find anything about about using EM's for the layout. Can someone tell me if its sufficient to use EM's only for the font-sizes?

Answer 1

According to http://www.w3.org/TR/2010/NOTE-WCAG20-TECHS-20101014/C28 you need to use em's for layout as well (for text-content) to satisfy the "sufficient" criterion.