Describe the purpose of a control banding approach in BEA when quantitative exposure limits are not available.

• A. It replaces the use of exposure limits with guesswork.
• B. It guides selection of protective controls based on hazard bands and exposure potential, providing practical, qualitative controls when numeric limits are absent.
• C. It increases sampling frequency to obtain numeric limits.
• D. It applies only to chemical hazard communication.

Answer: (B)

When numeric exposure limits aren’t available, control banding gives a practical framework for reducing risk. It groups hazards into bands based on how hazardous they are and how much exposure is likely, then uses that combination to guide picking protective controls—engineering controls, administrative measures, and appropriate PPE—at a qualitative level. This approach provides proportionate, actionable safeguards without needing precise numerical data, which is especially useful for new chemicals, small workplaces, or data gaps. It isn’t about guessing or replacing limits with guesswork, and it isn’t about increasing sampling just to obtain numeric limits. It also goes beyond hazard communication by guiding the actual controls to put in place.