[quote
How does an organization establish a precedent over an industry that for all intensive purposes is legally viewed as ambiguous?

The definition of what porn is will have to be established first before it can be regulated by any government agency.

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I disagree - in this case, its about workplace and employee vs. independant contractor (most people considered independant contractors by their employer are really employees in the eyes of the law). They don't have to define porn. Its just workplace safety. I'm also willing to bet that every state has similar regulations that could lead to similar fines or actions.

Oh, and typically its not a definition of porn but a definition of obscenity that they need to set when dealing with a porn company.