Public comment

Letter from North American Metals Council (submitted May 12, 2014)

Letter from International Tungsten Association (submitted April 30, 2014)

Summit Toxicology 2014: Letter from Sean M. Hays and Lesa L. Aylward for agenda item Best Practices for Biomarker Collection, Analysis, and Interpretation

IFRA-NA 2013: Submission of documents on musks