What does PEL stand for in occupational safety?

• A. Peak Exposure Limit
• B. Personal Exposure Level
• C. Permissible Exposure Limit
• D. Permit Exposure Limit

Answer: (C)

Permissible Exposure Limit (PEL) is the regulatory ceiling set by OSHA for the maximum concentration or dose of a chemical in workplace air that workers can be exposed to over a specific period, typically an 8-hour workday (with an associated short-term exposure limit for brief peaks). This limit is enforceable and used to guide safety measures; if monitoring shows exposure approaching or exceeding the PEL, employers implement controls such as engineering changes, administrative scheduling, or appropriate personal protective equipment. The other phrases aren’t standard OSHA terms—Peak Exposure Limit isn’t a recognized OSHA limit, Personal Exposure Level describes a measurement rather than a limit, and Permit Exposure Limit isn’t a standard term—so the correct stand-alone concept is the Permissible Exposure Limit.