A colleague is looking at migrating some DTD-compliant EAD finding aids to be schema-compliant, and the @mainagencycode within the eadid is set to not have a country code prefix. As far as I can tell, the @mainagencycode values within schema-compliant EAD are constrained to ISO 15511 values *with* country codes, but this constraint is not there for DTD-compliant EAD. I'd like to verify this is correct, as the tag library for EAD 2002 <http://www.loc.gov/ead/tglib/att_gen.html> specifies the following: [quote] MAINAGENCYCODE -- A code in <eadid> compliant with ISO/DIS 15511 Information and Documentation International Standard Identifier for Libraries and Related Organizations (ISIL). Values should be supplied without the country code, which should be placed instead in the COUNTRYCODE attribute. [/quote] However, my colleague is unable to get @mainagencycode values without the country code prefix to validate, leading the validation engine to state that codes such as "US-CtY" are invalid. Mark A. Matienzo Digital Archivist, Manuscripts and Archives Yale University Library