An Employer Is Deemed to Have Had Constructive Knowledge of a Recognized

An employer is deemed to have had constructive knowledge of a recognized hazard when:

A) past safety practices imply that the employer was aware of the hazard, and the hazard was so obvious that anyone would have been aware of it.
B) it has been the subject of a prior OSHA citation.
C) at least one prior injury has arisen out of the hazard.
D) the industry recognizes the hazard even if the employer doesn't actually know of the hazard.