The responsibility for verifying the adequacy of a material verification program performed by material suppliers falls on the Owner / user. They bear the ultimate risk in the case of any adverse outcomes from material failure. Despite the crucial roles played by API PMI Specialist, Authorized Inspector, and Piping engineer, the ultimate responsibility rests with the Owner / user.
The person who is responsible for verifying the adequacy of the material verification program performed by material suppliers is the Owner / user. The Owner / user has the responsibility because they ultimately bear the risk and potential repercussions if the material verification fails. They should ensure that all parties, including API PMI Specialist, Authorized Inspector, and Piping engineer, fulfil their roles effectively.
In the context of the question, an Step-by-step explanation for this answer is that owners/users have the obligation to oversee all aspects of their projects or operations, which includes reviewing and verifying the integrity and quality of material sourced from suppliers. It's crucial to note that the persons mentioned in the option (i.e., API PMI Specialist, Authorized Inspector, and Piping engineer) all contribute in the verification process, but the main responsibility rests with the owner/user.
Thus, regardless of the establishment of material verification programs by vendors, the onus falls on the owner/user to ensure such programs' adequacy, as it ultimately affects their project's safety and success.
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