IF YOU DO NOT HAVE CERTIFICATION. YOU MUST Sign a waiver STATING YOU INTEND TO RE-SELL THE REFRIGERANT Or give it someone who is certified. JUST CUT AND PASTE THIS INFO AND SEND TO US AS A MESSAGE. This item is in the category "Business & Industrial\HVAC & Refrigeration\HVAC & Refrigeration Components\Refrigerants\R-22". The seller is "purecold2020" and is located in this country: US.This item can be shipped to United States.