Control measures for laser maintenance facilities shall be applicable to which class of laser maintained?

The correct answer highlights that control measures for laser maintenance facilities must be applicable to the highest class of laser maintained. This is crucial because higher-class lasers typically possess greater potential for causing harm. Laser safety regulations and protocols are designed to ensure that the risks associated with powerful lasers are effectively managed.

When dealing with the highest class of lasers, strict adherence to safety measures is essential. This includes comprehensive training for personnel, proper use of protective equipment, and the implementation of safety barriers to minimize exposure risks. Ensuring that control measures are robust enough to handle the most hazardous situations ensures the safety of all personnel involved and complies with safety regulations.

Although lower classes of lasers also require some level of control measures, the implications and safety requirements escalate significantly with higher-powered lasers. This is why it's imperative that the maintenance facilities are equipped to manage the risks presented by the highest class of lasers to maintain a safe working environment.