# Letters of Interpretation
1 - 1910.1200(f)(11) - Hazard Communication Standard's (HCS 2012) June 1, 2016 effective date, 1910.1200(j)
2 - 1910.1200(f)(11) - Requirement to list carcinogens on labels under GHS.
3 - 1910.1200(f)(11) - Responsible party for MSDSs and labelling of imported chemicals.