Final answer:
SDSs are required for hazardous substances, which can include chemicals in the workplace, some commercial products, and possibly some over-the-counter medications if deemed hazardous.
Step-by-step explanation:
The types of substances that require a Safety Data Sheet (SDS), formerly known as a Material Safety Data Sheet (MSDS), are B. Only hazardous substances. SDSs provide detailed information on the properties of a chemical product, including its hazards, safe handling, and response to emergencies.
It is crucial for workers and emergency responders to have access to SDSs to ensure safety in the workplace. Substances that are defined as hazardous by the Occupational Safety and Health Administration (OSHA) must have an associated SDS. This includes chemicals in the workplace, certain commercial products, and may include over-the-counter medications if they are considered hazardous.