Division Preliminary note

The obligations laid down in this Annex apply to:

• places classified as hazardous in accordance with Annex I whenever required by the features of workplaces, workstations, the equipment or substances used or the danger caused by the activity related to the risks from explosive atmospheres,

• equipment in non-hazardous places which is required for, or helps to ensure, the safe operation of equipment located in hazardous places.