8 CCR Section 336.11 creates a defense for an exposing employer in specified circumstances where the violative condition is not the fault of the exposing employer and has been created or allowed to go uncorrected, by other employers, and the exposing employer has taken reasonable steps to protect its employees. Section 336.11 obligates compliance personnel to determine whether the “exposing employer” defense applies in a multi-employer situation. If it is determined that the defense applies, then the exposing employer shall not be cited. If an exposing employer disagrees with a Division determined that the Section 336.11 defense is inapplicable and appeals a multi-employer citation on that basis, it is the employer’s burden to demonstrate that the defense applies.