Andrew from Indianapolis, In. writes
Also, do you need to be certified to use Diatomaceous Earth powder?
The only time you need to be certified and licensed is when there are restrictions for purchase in a specific state or if you plan to treat someone else's home or property for profit. As a homeowner, you may apply Diatomaceous Earth and Temprid SC to your own home without being certified/licensed in Indiana.
Answer last updated on: 01/07/2014