ERRATUM NOTE: Davis et al. have reported an error in their article “A Retrospective Assessment of Occupational Exposure to Elemental Carbon in the U.S. Trucking Industry” [Environ Health Perspect 119:997–1002 (2011)]. On p. 1001 of their article (the next to last paragraph of the “Discussion”), there was a coding error in the original calculation: The percentage of person-years prior to 1971 was 8% and not 1.1%, as stated in the article. The authors apologize for the error. This error has been corrected in the PDF version of this article. Environmental Health Perspectives • ERRATUM