Which of the following is an example of an engineering control for lasers?

The correct answer highlights a vital aspect of laser safety management. Protective housings are designed to safeguard individuals from exposure to laser radiation by enclosing the laser system in a protective shell or barrier. This engineering control physically limits access to the laser beam and reduces the likelihood of accidental exposure, thereby significantly enhancing safety in the operating environment.

In contrast, the other options represent different approaches to laser safety. Standard Operating Procedures offer guidance on safe practices, but they rely on human compliance rather than providing a physical barrier. Warning labels serve to inform personnel of the potential hazards associated with the laser but do not prevent exposure. Educational training is critical for ensuring that users understand the risks and appropriate safety measures, yet it still depends on individual behaviors rather than implementing a physical control.