We considered high hazard locations to be:

a) power station or nuclear installation;
bi) offshore oil/ gas installation; and/or
bii) supply, support or accommodation vessel or structure relating to such an installation;
or while travelling to or from them by sea or air;
c) chemical works;
d) aircraft, airport, airfield, airstrip, satellites, spacecraft, launch site, ship, dock, pier or wharf;
e) tower, steeple, chimney shaft, blast furnace, dam, canal, viaduct, bridge or tunnel;
f) underground mine or colliery; and/or
g) railways and associated equipment, or rolling stock.