Helideck
urn:aero:airm:1.0.0:ConceptualModel:Subjects:BaseInfrastructure:AerodromeInfrastructure:Helideck
A heliport located on an offshore structure such as an exploration or production platform used for the exploitation of oil or gas.
Source:
ICAO Annex 1,ICAO Annex 14,ICAO Annex 6,