How are wage rates determined for classes that are not surveyed?
Often, wage surveys result in insufficient data for job classifications. Establishing a prevailing wage rate for these classifications can be accomplished through a “slotting,” procedure, utilizing the grading system for Federal employees. Under “slotting,” wage rates are derived based on a comparison of equivalent or similar job duties and skills between the classifications which were surveyed and those for which no survey data is available. For example, a surveyed rate for the janitorial classification may be adopted for the food service worker (cafeteria worker) classification because job duties and skills, required for both classifications, are rated at the same grade level under the grading system for Federal employees.