Can safety engineering professionals be granted a H1B visa? Is safety a category in H1B?

Can safety engineering professionals be granted a H1B visa? Is safety a category in H1B? I have a friend of mine who wants to work in US but he is a safety engineer and wants to know if he can find a employer in industry to sponsor for his job? There are not many people who know about this field and will safety be considered as a speciality occupation for H1B’s?