Safe Crushing Screening Plant Design - quarry-safety.net •Conformity with standards, directives and regulations - in all market areas Building construction machinery and equipment - Mobile crushers. Other States have promulgated their own regulations that regulate crushing under . health and safety requirements related to the use.Mobile crushers are used in a wide range of industries, including quarrying, ore processing and recycling of demolition waste. This guidance is for all those with responsibilities for the operation of mobile crushers, including contract managers, supervisory staff and operators of these machines. It covers the safe operation of the mobile.