USP3 and PIC/S5 list extra goods to get completed within the OQ including cleaning and leak tests. Decontamination cycle advancement happens once the completion of the OQ and is discussed in detail in section six. During the planning section, a decision on the appropriate decontamination agent must be created. https://tailinscitech.wordpress.com/2026/01/16/optimizing-pharma-filling-and-sealing-processes-with-tailin-technology/