I came across this citation at an Ethanol plant (May 2016) regarding their combustible dusts hazards and the lack of WARNING signs…
Citation 2 Item 1
Type of Violation: Other-than-Serious; $0.00
29 CFR 1910.145(c)(2)(i): Caution signs shall be used only to warn against potential hazards or to caution against unsafe practices:
a. On or about November 9, 2015, at the East entrance to the receiving barn/building, the employer did not have a combustible dust hazard sign to warn against potential deflagration and explosion hazards from grain dust atmospheres that may occur due to the handling of grain and DDGS (Dry Distillers Grain Soluble).
b. On or about November 9, 2015, at the West entrance to the receiving barn/building, the employer did not have a combustible dust hazard sign to warn against potential deflagration and explosion hazards from grain dust atmospheres that may occur due to the handling of grain and DDGS.
c. On or about November 9, 2015, at the North truck and rail entrance to the receiving barn/building, the employer did not have a combustible dust hazard sign to warn against potential deflagration and explosion hazards from grain dust atmospheres that may occur due to the handling of grain and DDGS.
d. On or about November 9, 2015, at the West entrance to the DDGS barn/building, the employer did not have a combustible dust hazard sign to warn against potential deflagration and explosion hazards from grain dust atmospheres that may occur due to the handling of DDGS.
e. On or about November 9, 2015, at the entrances to the grain tunnel, the employer did not have combustible dust hazard signs to warn against potential deflagration and explosion hazards from grain dust atmospheres that may occur due to the handling of grain.
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