Which of the following systems does PQS not apply to?

The PQS, or Personnel Qualification Standards, are designed to ensure that personnel are thoroughly trained and qualified to operate various systems within the Navy. Each type of system—surface ship systems, weapons systems, and radar systems—has its PQS requirements tailored to ensure readiness in those specific areas.

Nuclear propulsion systems, however, have a unique set of training and qualification requirements. Due to the complexity and potential hazards associated with nuclear technology, the training and certification for these systems are managed through rigorous and specialized programs that are distinct from the standard PQS framework. This ensures that personnel operating nuclear systems receive a higher level of scrutiny and proficiency training, focusing on safety and technical expertise unique to nuclear operations.

Thus, PQS does not apply to nuclear propulsion systems because they have their own specific qualification and training requirements that are designed to address the unique operational challenges and dangers associated with nuclear power.