Final Answer:
Fire drills for Class B Office Buildings occupied with tenants for more than two years should be conducted at least once per year.
Step-by-step explanation:
In the context of fire safety, the frequency of fire drills for Class B Office Buildings is specified based on occupancy duration. For buildings occupied with tenants for more than two years, the recommended practice is to conduct fire drills at least once per year. These drills are essential for assessing the effectiveness of emergency procedures, evaluating evacuation routes, and ensuring that occupants are familiar with the appropriate actions to take in the event of a fire.
Regular fire drills contribute to the overall safety and preparedness of building occupants. They provide an opportunity to identify potential shortcomings in emergency response plans, address them promptly, and enhance the likelihood of a safe and orderly evacuation in case of a fire emergency.