Falling in the last category is Denmark's own Crown Princess Mary. She has two tiaras: the Ruby Parure tiara (which she last wore at Crown Princess Victoria's wedding), and her wedding tiara. Every now and then, she'll bust out a third, the Midnight Tiara (which we saw during Queen Margrethe's birthday celebrations), but that one is a loaner.
The General Duty Clause has an important use for workers. Sometimes there is a hazard, but OSHA has no specific rule or standard dealing with it. Under the General Duty Clause, the employer has an obligation to protect workers from serious and recognized workplace hazards even where there is no standard.
The OSH Act covers all private sector working conditions that are not addressed by safety and health regulations of another Federal agency under other legislation. OSHA also has the authority to monitor the safety and health of Federal employees.