Select a Work Level: Work levels are based on the Federal General Schedule (GS) scale, where higher GS levels relate to higher skill levels for any given occupation. Users may select any work level available; the result will be either a published wage estimate or a modeled wage estimate. Published estimates are tabulated from data collected from survey respondents. These data are reviewed and meet BLS publication criteria. Modeled wage estimates are derived using linear regression techniques. Publication criteria are not applied to modeled estimates. The "Overall Occupation Average (no work level)" category refers to the mean hourly wage for all workers in the selected occupation and is always a published estimate for locality-based estimates as well as for regional and national estimates.