Which personnel are authorized to conduct inspections under OTCNINST 1530.6M?

The correct choice emphasizes that inspections under OTCNINST 1530.6M are to be conducted only by designated supervisors and appointed individuals. This ensures that the inspections are carried out by personnel who have received the necessary training and are aware of the specific standards and protocols outlined in the instruction. This is essential for maintaining consistency, integrity, and security during inspections, as these designated personnel are typically chosen based on their qualifications, responsibility level, and understanding of the inspection process.

This structured approach helps in adhering to regulations and facilitating effective oversight within the organization. It also means that the inspections are not arbitrarily conducted by anyone, thereby ensuring that those conducting them have the authority and the knowledge necessary to uphold the standards set by the institution.