HCS classification and labeling requirements for products containing crystalline silica
OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.
February 10, 2015
David Cawthon, Ph.D.
Center for Toxicology and Environmental Health, LLC
5120 North Shore Drive
North Little Rock, Arkansas 72118
Dear Dr. Cawthon: