NSDL Education Level Vocabulary XML Schema XML Schema for http://metadataregistry.org/uri/NSDLEdLvl namespace Date created: 2006-04-13 13:58:01 Date of last update: 2007-12-13 03:22:50 Further information about this Vocabulary is available at http://metadataregistry.org/uri/NSDLEdLvl.html