Final answer:
The Occupational Safety and Health Act (OSHA) is not designed to protect the environment.
Step-by-step explanation:
The regulation that is not designed to protect the environment is the Occupational Safety and Health Act (OSHA).
The Resource Conservation and Recovery Act (RCRA), Clean Air Act, and Clean Water Act are all regulations specifically implemented to protect the environment. RCRA provides regulations for the management and disposal of hazardous waste, while the Clean Air Act focuses on reducing air pollution and improving air quality. The Clean Water Act aims to maintain and restore water quality.
Unlike the other three regulations, OSHA is concerned with workplace safety and health, rather than environmental protection. It sets standards and guidelines to ensure the safety and well-being of workers in various industries.