What is the purpose of a Chemical Hygiene Plan (CHP) in laboratories?

• A. To minimize chemical exposure and accidents through procedural controls, engineering controls, PPE, and emergency response planning
• B. To maximize throughput by reducing safety checks
• C. To standardize supplier selection and procurement
• D. To optimize inventory turnover without safety considerations

Answer: (D)

The core idea is that a Chemical Hygiene Plan is all about protecting people and the environment by reducing risks from chemical hazards. It does this by laying out practical ways to minimize exposure and prevent accidents, using a combination of procedural controls (standard operating practices, safe handling procedures), engineering controls (like fume hoods and venting), personal protective equipment, and clear emergency response plans. A CHP also covers training, chemical handling and storage rules, spill response, waste disposal, and keeping up-to-date inventory and safety information (like SDS). This is why the best description is the one that emphasizes reducing exposure and preventing accidents through these layered controls and planning. The other options miss the safety focus: one centers on throughput with fewer safety checks, another on procurement standardization, and the last on inventory turnover without considering safety, all of which don’t capture the purpose of safeguarding people and environments in the lab.