What document contains key information on chemical ingredients and associated hazards?

The correct response is the Material Safety Data Sheet (MSDS). This document serves as an essential resource that provides comprehensive information regarding the chemical's properties, including its physical and chemical characteristics, potential health effects, exposure limits, and safety precautions for handling, storage, and disposal. The MSDS also includes details on first aid measures, fire-fighting procedures, and environmental protection guidelines, making it a critical document for ensuring safety and compliance in workplaces that handle hazardous materials.

It's important to note that the MSDS has largely been replaced by Safety Data Sheets (SDS) in recent regulatory frameworks to standardize the format and improve the clarity of the information provided. Both documents serve similar purposes, but the SDS is formatted according to the Globally Harmonized System (GHS) of Classification and Labeling of Chemicals, which facilitates better understanding across different countries and industries.

While a Health and Safety Manual provides overarching safety policies and procedures, and a Hazard Communication Plan outlines how hazards will be communicated in the workplace, neither document contains the specific detailed chemical hazard information that the MSDS provides. The focus of the MSDS is specifically tailored to individual chemicals and their associated risks, making it the most relevant choice for this question.