OSHA regulates which of the following?

OSHA, or the Occupational Safety and Health Administration, is a regulatory agency focused on ensuring safe and healthy working conditions for employees. Its primary role is to enforce standards that help mitigate workplace hazards that could lead to injuries or illnesses. This includes establishing regulations and guidelines for personnel safety, covering a wide range of areas such as proper use of personal protective equipment (PPE), fall protection, exposure limits to toxic substances, and safety training for workers.

The focus on personnel safety is crucial as it directly impacts workers' well-being and productivity. By setting and enforcing safety standards, OSHA aims to reduce workplace accidents and ensure that employers provide safe environments for their employees. Thus, this makes personnel safety the central aspect regulated by OSHA.

While environmental conditions can have indirect connections to workplace safety, OSHA primarily concentrates on the safety of personnel rather than broader environmental issues. Likewise, OSHA does not regulate production quotas, which are typically determined by a business's operational goals and market demands. Training certifications can also be important for specific roles, but those are often guided by industry standards rather than directly regulated by OSHA itself.