Category:Expiration Year to:Expiration Year from:Public Commercial Applicator List Generator Website Create a list of certified pesticide applicators by selecting the County, the Expiration Year(s), and the certification Category. If you select Any in the Category field, you will retrieve all applicators who have at least one category expiring in the date range and county you have selected. Click on the Go button to process your request. Report generation may take several minutes. County:BackBack Home