Urine Collection Cups are produced and assembled in a Clean Room so they are considered to be machine Sterile, as they are injection molded in 200 Celsius before being assembled and packed. However, Urine Collection Cups and Containers are usually not sterilized by Gamma. Miniplast can offer a Gamma sterilized option for urine Cups and Containers. It is important to check the product description or consult with their sales team to determine if the specific product you are interested in is sterile.