As a safety officer at a facility, determining whether to rely on OSHA's PELs or consider alternative OELs primarily involves considering various factors. OSHA's PELs hold legal enforceability, serving as a crucial reference for compliance. However, there are instances where adopting alternative OELs or a combination becomes necessary. When evaluating OSHA's PELs against ACGIH or NIOSH limits, opting for the more protective standards enhances worker safety and health