Final answer:
It is true that in a hazard communication program, identifying responsible staff and hazardous chemicals should be done before the implementation of the program to ensure safety and regulatory compliance.
Step-by-step explanation:
When putting your hazard communication program into practice, it is true that you should identify responsible staff and identify hazardous chemicals before you begin implementing your program. A well-organized hazard communication program includes recognizing and evaluating all potential chemical hazards, designating staff who are accountable for various roles involved in managing hazardous materials, and preparing for effective communication and training processes. This ensures compliance with health and safety regulations, such as those set forth by the Occupational Safety and Health Administration (OSHA), and safeguards both employees and the workplace.