Final answer:
Safety and emergency materials must be maintained and readily accessible to the fire department in a laboratory setting, and certain safety protocols should be known by all students and staff.
Step-by-step explanation:
The statement suggests that certain materials, likely relating to safety and emergency protocols, must be maintained and be easy to access by the fire department. This is a standard procedure in many workplaces and learning environments, especially in areas such as laboratories where the risk of accidents can be higher. Having these materials readily available and maintaining them for a period of three years ensures that there is a historical record of safety and incident management that can be reviewed if necessary. It's important that all students and staff are familiar with the location of these materials as well as critical safety equipment like fire extinguishers and eyewash stations.