Which act requires employers to inform employees about chemicals and hazards in the workplace?

The Occupational Exposure to Hazardous Chemicals Standard is the correct answer because it specifically mandates that employers provide employees with information regarding the chemicals they work with and the potential hazards associated with those substances. This standard is part of the broader framework established by the Occupational Safety and Health Administration (OSHA) to ensure safety and health regulations in the workplace.

Under this standard, employers are obligated to create a hazardous communication program, which includes labeling of chemicals, safety data sheets (SDS), and employee training. This requirement empowers employees to understand the risks they may encounter and how to protect themselves effectively while working with various chemicals.

The other options do cover health and safety regulations but do not specifically focus on the communication of chemical hazards in the same direct manner as the Occupational Exposure to Hazardous Chemicals Standard. For example, while the Occupational Safety and Health Act sets the groundwork for safety in the workplace broadly, the Employee Right to Know Act, although similar in intention, does not specifically address chemical hazards like the selected standard does.