IEC 60079-19:2010 gives instructions, principally of a technical nature, on the repair, overhaul, reclamation and modification of equipment designed for use in explosive atmospheres; it is not applicable to maintenance, other than when repair and overhaul cannot be disassociated from maintenance, neither does it give advice on cable entry systems which may require a renewal when the equipment is re-installed. The significant technical changes with respect to the previous edition are: - inclusion of specific Group I requirements; - inclusion of offshore requirements.