Which of the following is not included in the OSHA regulations for MSDS?

The correct choice indicates an aspect that is not covered by the Occupational Safety and Health Administration (OSHA) regulations for Material Safety Data Sheets (MSDS). MSDS, now commonly referred to as Safety Data Sheets (SDS) since the adoption of the Globally Harmonized System (GHS), typically includes critical information for handling hazardous materials.

Key sections of an SDS include Physical Properties, which detail characteristics like boiling point, evaporation rate, and chemical stability; Exposure Effects, which explain potential health hazards associated with the substance and the symptoms of overexposure; and Regulatory Information, which provides details on compliance with federal, state, and local regulations.

However, Treatment Efficacy is not typically addressed in these documents. This term refers to how effective a certain treatment is in alleviating or curing a condition related to exposure, which goes beyond the scope of safety and handling information that MSDS/SDS documents are designed to provide. These sheets focus on safety data, hazard communication, and emergency actions related to exposure rather than medical treatments or their effectiveness. Thus, Treatment Efficacy is correctly identified as the option not included in OSHA regulations for MSDS.