Which one of the following provides a profile of hazardous substances or mixtures?

The Material Safety Data Sheet (MSDS) is a crucial document that provides detailed information about hazardous substances or mixtures. It includes data on the properties of each chemical, the potential hazards associated with their use, safe handling and storage tips, and instructions for dealing with spills or exposure. The MSDS serves not only as an informational tool for users to understand the risks connected to specific substances but also outlines emergency measures and first-aid procedures, making it essential for workplace safety and compliance with health regulations.

In contrast, while organizations like OSHA set and enforce standards for workplace safety, they do not provide specific profiles of individual hazardous substances, but rather regulations surrounding their use. The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) focuses on the cleanup of hazardous waste sites and does not specifically profile substances. The Code of Federal Regulations (CFR) is an overarching collection of regulations, and while it may include provisions about hazardous substances, it does not offer profiles in the same way that MSDS does. Therefore, the MSDS stands out as the correct answer because it directly addresses the need for detailed risk profiles of hazardous substances and mixtures.