Who approves requests for a material master record for stock material using transaction ZNONSTD?

The approval of requests for a material master record for stock material using transaction ZNONSTD falls under the responsibility of the PBO (Property Book Officer). The PBO plays a crucial role in managing and overseeing the material and stock records within an organization. They ensure that all necessary material master records are properly set up and maintained according to regulations and inventory management requirements.

This specific responsibility entails reviewing requests for new material master records, ensuring compliance with established policies, and authorizing the record creation to ensure that the supply chain operates efficiently and accurately. The use of transaction ZNONSTD is specifically aligned with the PBO's authority to formalize these requests.

In contrast, the other choices align with different functions or roles that do not pertain to the approval process for material master records directly. Understanding the specific roles and transaction codes within the GCSS Army system is vital for effective supply chain management.