Final answer:
The Revised Hazard Communication Standard became effective on July 1, 2018. This was implemented by OSHA to provide accurate information about chemical hazards to employers and employees, including labels, data sheets and training.
Step-by-step explanation:
The date that the Revised Hazard Communication Standard became effective was b) July 1, 2018. This standard, set by the Occupational Safety and Health Administration (OSHA), was revised to align with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). The purpose of this standard is to ensure that the hazards of all chemicals produced or imported are evaluated, and that information about these hazards is transmitted to employers and employees. This transmittal of information is to be accomplished by means of comprehensive hazard communication programs, which are to include container labeling and other forms of warning, safety data sheets and employee training.
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