While OSHA sets PELs in the United States, other countries have their own occupational exposure limits, which can vary significantly. For instance, the European Union has its own set of regulations, known as Occupational Exposure Limits (OELs). Global consistency in PELs is challenging due to differing methodologies and safety standards. However, international organizations like the World Health Organization (WHO) work towards harmonizing safety levels to protect workers worldwide.