The original public comment erratum 4.1 allowed lengthUnits 'bits' to be used with packed calendars. While this has been correctly reflected in section 12.3.7.2, the description of the lengthUnits property in 12.3 was not updated. Should say: Usage is restricted as follows: �h 'characters' may only be used for complex elements and simple elements with text representation. �h 'bits' may only be used for xs:boolean, xs:byte, xs:short, xs:int, xs:long, xs:unsignedByte, xs:unsignedShort, xs:unsignedInt and xs:unsignedLong simple types with binary representation, and for calendar simple types with binary packed representation. �h 'bytes' must be used for type xs:hexBinary. �h 'bytes' must be used for types xs:float and xs:double with binary representation Regards Steve Hanson Architect, IBM DFDL Co-Chair, OGF DFDL Working Group IBM SWG, Hursley, UK smh@uk.ibm.com tel:+44-1962-815848 Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU