Final answer:
The three complementary parts of a comprehensive hazard communication program are labels, safety data sheets, and training.
Step-by-step explanation:
The three complementary parts of a comprehensive hazard communication program are labels, safety data sheets, and training.
Labels provide important information about the hazards of a chemical substance. They typically include the name of the substance, pictograms, signal words, and precautionary statements.
Safety data sheets (SDS) contain detailed information about a chemical, including its physical and chemical properties, hazards, safe handling and storage procedures, first aid measures, and more.
Training ensures that employees understand the hazards associated with the chemicals they work with and know how to protect themselves.