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Hazard evaluation is a process which relies heavily on the professional judgment of the evaluator.
Employers evaluating chemicals shall describe in writing the procedures they used to determine the hazards of the chemical they evaluate. If a determination has been made that a hazard does not exist, then the labeling and material safety data sheet requirements will not apply. Please accept my apology for the delay in response. The overwhelming number of letters and telephone calls regarding the Hazard Communication Standard has caused unavoidable delays in responding to the public's concerns. Methylene chloride has been shown through established scientific studies to be a suspect carcinogen .