5508 2008-02-27 20:53:03 +0000 </p> flagged as not required when there is a matching <p> 2008-04-17 12:08:37 +0000 1 1 1 Unclassified Validator check HEAD PC Windows XP RESOLVED INVALID http://www.arkdisabilityrights.org/index.html P2 normal --- 1 robertbrown dave.null www-validator-cvs oldest_to_newest 19216 0 robertbrown 2008-02-27 20:53:03 +0000 Starting line 170, </p> is being flagged (twice) as not required because there is no open <p> element, when in fact there is an opening <p> just a few lines above it in both cases. 19847 1 ot 2008-04-17 12:08:37 +0000 The example document at the given URI has many errors but not the one you mention. In HTML some end tags can be omitted, and some constructs will be interpreted as implicitly closing them. e.g <p>some content<div></div></p> will be interpreted, in HTML, where a <p>cannot contain a <div> but can be implicitely closed, as: <p>some content</p><div></div></p> You can see why the validator will see an issue with the </p> If you don't want this (implicit closing), you can use XHTML where all end tags are required.