Final answer:
The project manager or quality control manager is typically responsible for notifying the Procurement Contracting Officer (PCO) immediately upon receipt of a deficiency notice or a valid customer complaint to swiftly address any issues and maintain standards.
Step-by-step explanation:
The individual who is responsible for notifying the Procurement Contracting Officer (PCO) immediately upon receipt of a deficiency notice or a valid customer complaint typically varies depending on the structure of the organization. However, it is generally the duty of the project manager or the quality control manager to ensure that such notifications are made promptly. The intent behind this immediate communication is to address any issues as quickly as possible to maintain quality, performance standards, and customer satisfaction.