validity in HTML

Hi all,

In previous discussions, we had considered validity a part of the 
requirements of WCAG, and so the latest draft doesn't specify it 
directly. (Checkpoint 2.3 does note that "WCAG includes a markup 
validity requirement.") However, the WCAG WG has removed validity as a 
Level 1 requirement, and set it at Level 2, with an exception for code 
that helps AT or UA compatibility.

Since standards-based coding is an important part of the Web development 
process, I would like to propose making validity a P1 requirement in ATAG 2.

-
m