I am looking for a list of all the states that require training for pesticide applicators in order to do WDI inspections. If your state has special training or testing involved to get certified or licensed, please list your state here. Here in PA we have a Core and a Catagory test that you must take in order to be certified as a pesticide applicator. Nachi already has a WDI course that has been submitted to several states for CE credits. I would be interested in getting a course together to qualifiy for Core requirement CE credits. Every state is going to be a little different, so if you have Core requirements in your state, let me know if they have a certain test that they use.