Restricted to Letters, digits, hyphen, space, period, and apostrophe standard Email Address format Globally Unique identifier consisting of 32 hex digits grouped into hyphen separated segments with lengths of 8-4-4-4-12 digits each. F139FB87-919B-4618-AA57-B50A16DED71C Begins with either P or C characters (case-insensitive) followed by one or more digits 9 digit number Fairly broad selection of characters including letters, digits, hyphen, parenthesis,colon, period, comma,apostrophe, square brackets, pound sign and any whitespace. Date, as Year-Month-Day, with no time component which must include timezone offset. 2011-01-04Z 2011-01-04+06:00 Date only, as Year-Month-Day 2011-01-04 Date with time component which must include offset. 2011-01-04T03:15:00Z 2011-01-04T03:15:00+06:00 Date with time component 2011-01-04T03:15:00 This version of address is primarily designed for U.S. postal address information but the state field will be relaxed in length to allow for alternative forms of province/region information. For the US, State is a two character field. For others it can be longer and can represent a province or region Use for multiple contacts Restricted to parenthesis, period, spaces, digits and letters Customer supplied transaction reference. Used for batching transactions into groups PROPOSED REMOVAL FROM SCHEMA Use to associate with a previous filing. For replace, delete, merge 4 digit year between 2000 - 2100