Before switching passenger equipment or occupied outfit cars, what is required?

Before switching passenger equipment or occupied outfit cars, it is essential to couple the air hoses and fully charge the brake system. This step is critical for safety and operational efficiency. The air brake system is a crucial component in ensuring that the train can stop effectively and safely. Properly coupling the air hoses allows for the necessary air pressure to be distributed throughout the braking system of the cars, enabling the brakes to function properly when needed.

By fully charging the brake system, the crew ensures that the brakes are operational before any movement occurs, which directly contributes to the safety of both the train crew and any passengers on board. Adequate preparation of the braking system is vital, especially when handling passenger equipment, as it reduces the risk of accidents and enhances overall safety measures.

The other options, while they may pertain to working safely around trains, do not address the critical need for preparing the air brake system before switching operations involving passenger cars.