As of March 20, 2003, compressed tape files containing NAICS-based State and metropolitan area employment, hours and earnings data will be available. In comparison to the SIC-based tape files, the NAICS-based tape files involve 1) an extension of the series ID field to 30 characters and 2) a change in the series ID. For your continued use, the historical compressed tape files containing SIC-based State and metropolitan area employment, hours and earnings data will remain but will no longer be updated. To obtain format and filename specifications for the NAICS-based State and metropolitan area employment, hours and earnings data, please refer to the tapeformat.doc file located in this directory. If you have any questions, please contact us via e-mail at labstat.helpdesk@bls.gov or by phone at (202) 691-7614.