How often do we update Crosswalk data in the Workforce Information Database?
Revisions to crosswalk tables occur on an irregular and infrequent basis. The revisions are driven by changes in the respective classification systems included in the files. For example, crosswalks that include employment projections occupations and industries (MATXSOC and MATXNAICC are the currently active ones) are revised every two years when new projections become available. Revisions to O*NET databases frequently involve only changes to the descriptive information, rather than a change to the occupation codes or titles, so they frequently do not lead to crosswalk revisions.
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