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 Health and Safety at Work Act 1974 (HASAWA) lays down wide-ranging duties on employers. Employers must protect the 'health, safety and welfare' at work of all their employees, as well as others on their premises, including temps, casual workers, the self-employed, clients, visitors and the general public. However, these duties are qualified with the words 'so far as is reasonably practicable'.