Facilities manned by one person must be in the grade of ___________ or above.

The grade designation for facilities that are manned by one person is directly tied to the responsibilities and level of oversight required for maintaining safety and operational standards. In this context, the requirement that the facility must be staffed by an individual at the grade of E-5 or GS-7 or above reflects a need for a certain level of experience and expertise.

Personnel at these grades typically possess the necessary training, knowledge, and decision-making authority to effectively manage the facility, ensuring compliance with regulations and proficient operations. This not only pertains to adherence to safety protocols but also includes handling any emergencies or operational challenges that arise.

Lower grade levels may not provide adequate assurance that the staff can manage the complexities involved in operating a facility independently, hence the necessity for more qualified personnel at E-5 or GS-7 and above. This standard is designed to mitigate risks and maintain operational integrity in a solo staffing situation.