Which of the following is not a responsibility of employers regarding hazardous chemicals?

The responsibility of employers regarding hazardous chemicals is to ensure a safe and healthful workplace, which includes following the guidelines outlined in the OSHA Hazard Communication Standard. Among these responsibilities, ensuring proper labeling of containers, providing safety training, and developing emergency evacuation procedures are all critical components in managing hazardous chemicals.

In contrast, storing chemicals in unmarked containers is not a responsibility and runs counter to the principles of safe chemical management. Proper labeling is essential for hazard communication, helping all employees understand the risks associated with the chemicals they may encounter. Unmarked containers not only create confusion but can also lead to serious safety risks, as they fail to communicate vital information regarding the substances contained within them. Thus, the act of storing chemicals in unmarked containers is contrary to the requirements set forth by OSHA, making this option the correct answer as it does not align with employer responsibilities.