Containers of poisonous or toxic materials must be:

Containers of poisonous or toxic materials must be clearly labeled according to law and locked up to ensure safety and compliance with regulations. Proper labeling is crucial because it provides vital information about the contents, including hazards and safe handling instructions. This helps prevent accidental exposure or misuse by staff and visitors who may not be aware of the dangers associated with these substances.

Furthermore, locking up these materials adds a layer of security, preventing unauthorized access that could lead to accidental ingestion or environmental contamination. By adhering to these legal requirements, establishments reduce the risk of incidents related to toxic substances, thereby promoting a safe environment for both employees and customers.

While options such as storing them outside or using color coding might seem practical, they do not address the critical need for clear communication and security mandated by safety regulations. Similarly, storing these materials in dry storage areas doesn't necessarily ensure safety from unauthorized access or proper labeling, which are paramount.