Final answer:
The question deals with the compliance deadlines for the changes to the Hazard Communication Standard, with full compliance required by June 2015 and an exception for distributor shipping lasting until December 15, 2015.
Step-by-step explanation:
The question refers to the compliance deadlines for the Hazard Communication Standard changes that were enacted as part of the Occupational Safety and Health Administration (OSHA) regulations. According to the final rule signed on October 1, 2015, and made effective on December 28, 2015, entities had to fully comply with these new changes by June 2015.
However, an exemption was given to distributors for shipping containers labeled according to the Globally Harmonized System (GHS) until December 15, 2015. This compliance ensures adherence to not only OSHA requirements but also to other regulations such as the United States Department of Transportation hazardous materials regulations and the Environmental Protection Agency's (EPA) hazardous waste regulations.
It is important to note that while the 2015 standards were the current at the time, the 2008 standards also remained in effect in some areas, with plans to transition fully to the 2015 standards to be described in the implementation rule for those standards.