What document provides a profile of hazardous substances and/or mixtures?

The correct answer is the Material Safety Data Sheet (MSDS), which is now commonly referred to as the Safety Data Sheet (SDS). This document plays a critical role in workplace safety by providing a comprehensive profile of hazardous substances and/or mixtures. It includes essential information such as the chemical properties of the substance, potential hazards, safe handling and storage guidelines, and emergency measures in case of accidents or spills.

The importance of the MSDS lies in its ability to inform workers and emergency responders about the nature of the chemicals they may encounter, facilitating safe practices and compliance with relevant regulations. The MSDS is part of the globally harmonized system of classification and labeling of chemicals, ensuring that information about chemical hazards is available and clearly communicated.

In contrast, the other options do not provide profiles of hazardous substances in the same detail. A hazardous materials report typically summarizes potential risks but does not include the in-depth information found on an MSDS. An incident report form documents specific occurrences of incidents involving hazardous materials but does not detail the substances themselves. An environmental impact assessment evaluates the potential effects of a project on the environment and includes various factors but does not focus specifically on hazardous substances or their safe handling.