Operating instructions are used for informing employees of which steps are to be performed for an activity and in which sequence. As such, protective provisions are also set out in the operating instructions. Where the individual steps are difficult to set down in writing, it is recommended that what needs to be said is explained using pictures, exploded views, etc. Where operating instructions contain provisions regarding the prevention of accidents in the workplace and industrial diseases as well as the protection of health, then the right of co-determination of the works council is to be complied with in accordance with Art. 87 of the German Works Constitution Act (Betriebsverfassungsgesetz).