The Directive 2009/104/EC regulate the minimum safety and health requirements for the use of work equipment by workers at work. National regulations (like the german BetrSichV) usually have additional requirements.
The basic building blocks are a standardized risk assessment for the provision and use of work equipment, a uniform safety assessment for the operation of installations requiring monitoring, the state of the art as an essential safety standard and minimum requirements for the condition of work equipment, unless otherwise regulated are.
Before using work equipment, the employer must assess the hazards that occur (risk assessment) and derive the necessary and suitable protective measures. The presence of a CE marking on the work equipment does not release from the obligation to carry out a risk assessment