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.
OSHA: Complying With Workplace Health and Safety Laws. Learn about OSHA, the federal law that requires employers to provide safe working conditions. The federal Occupational Safety and Health Act, also called OSHA, requires employers to provide a safe working environment for employees. Many states also have their own workplace safety law.