4 other cargo ships of 500 gross tonnage and upward and mobile offshore drilling units constructed before 1 July 2004, not later than the first survey of the radio installation after 1 July 2006.

a building site, a construction or assembly project or installation project or drilling rig or ship used for the exploration or development of natural resources including supervisory activities in connection therewith, but only where such site, project or activities continue for a period of more than six months;

Such installations must be carefully planned with respect to future core drilling locations.

4 other cargo ships of 500 gross tonnage and upward and mobile offshore drilling units constructed before 1 July 2004, not later than the first survey of the radio installation after 1 July 2006.

All the necessary measures must be taken to ensure the safety and health of workers in the mineral-extracting industries through drilling while off-shore installations are being positioned at sea.

Included are permanent installations such as water supply, central heating, air conditioning, lighting, etc. as well as construction expenditure related to oil wells (drilling), operational mines, pipelines, power transmission lines, gas-pipes, railway lines, port installations, roads, bridges, viaducts, drains and other site improvements.

workplace shall mean the whole area intended to house workstations, relating to the immediate and ancillary activities and installations of the mineral-extracting industries through drilling, including accommodation, where provided, to which workers have access in the context of their work.

"offshore work" means work performed mainly on or from offshore installations (including drilling rigs), directly or indirectly in connection with the exploration, extraction or exploitation of mineral resources, including hydrocarbons, and diving in connection with such activities, whether performed from an offshore installation or a vessel;

'offshore work' shall mean work performed mainly on or from offshore installations (including drilling rigs), directly or indirectly in connection with the exploration, extraction or exploitation of mineral resources, including hydrocarbons, and diving in connection with such activities, whether performed from an offshore installation or a vessel.

the prevention, reduction and control of pollution and other hazards to the marine environment, including the coastline, and of interference with the ecological balance of the marine environment, particular attention being paid to the need for protection from harmful effects of such activities as drilling, dredging, excavation, disposal of waste, construction and operation or maintenance of installations, pipelines and other devices related to such activities;