What is the difference between PELs and TLVs?

What is the difference between PELs and TLVs?

• A. PEL: legally enforceable exposure limits set by OSHA; TLVs are recommended exposure limits published by ACGIH
• B. PEL: recommended exposure limits published by ACGIH; TLVs are legally enforceable exposure limits set by OSHA
• C. PEL and TLV: both legally enforceable exposure limits
• D. TLVs are published by EPA; PELs are published by OSHA

Answer: (A)

PEL stands for Permissible Exposure Limit and is a legally enforceable limit set by OSHA. This means employers must keep workers’ exposures at or below that level, and failing to do so can lead to penalties or required corrective actions. TLV stands for Threshold Limit Value and are recommended exposure limits published by ACGIH. They’re guidance used by industrial hygienists to assess and control exposures, but they’re not lawfully binding unless a regulator adopts them as a standard. So the key difference is enforceability and origin: PELs are mandatory OSHA limits, TLVs are non-binding recommendations from ACGIH.

PEL stands for Permissible Exposure Limit and is a legally enforceable limit set by OSHA. This means employers must keep workers’ exposures at or below that level, and failing to do so can lead to penalties or required corrective actions. TLV stands for Threshold Limit Value and are recommended exposure limits published by ACGIH. They’re guidance used by industrial hygienists to assess and control exposures, but they’re not lawfully binding unless a regulator adopts them as a standard. So the key difference is enforceability and origin: PELs are mandatory OSHA limits, TLVs are non-binding recommendations from ACGIH.