The XHTML Access Attribute is a W3C Working Draft, which provides a single element to be used in documents, to enable generic document accessibility.
The document is the work of the W3C's XHTML Working Group, and the editors are:
Mark Birbeck, webBackplane
Shane McCarron, Applied Testing and Technology, Inc.
Steven Pemberton, CWI
T. V. Raman, Google, Inc.
Richard Schwerdtfeger, IBM
From the abstract:
The XHTML Access module defines an element that, when used in conjunction with other XHTML modules in XHTML Family Markup Languages, enables a more robust accessibility model than is presently possible.