LNG IWT Project Database

GIIGNL Custody Transfer Handbook

Type of project


Place in LNG chain

SupplyStorageDistributionLNG as CargoBunkeringLNG as Fuel

IWT Corridor

Belgian & Dutch Inland WaterwaysDanube & MainElbe & Northern German Inland WaterwaysPoRhineRhone & SaoneSeine & Northern FranceThamesOther Inland Waterway/Not definedMaritime (IWT-relevant)Wadden Sea

Project status


Year of project completion


Number of ships


Project partners

Groupe International des Importateurs de Gaz Naturel Liquéfié (GIIGNL)


  • France

Study to download

Technical data


This third (2011) edition of the GIIGNL LNG Custody Transfer Handbook reflects GIIGNL’s understanding of best current practice at the time of publication.

The purpose of this handbook is to serve as a reference manual to assist readers to understand the procedures and equipment available to and used by the members of GIIGNL to determine the energy quantity of LNG transferred between LNG ships and LNG terminals. It is neither a standard nor a specification.

This handbook is not intended to provide the reader with a detailed LNG ship-shore custody transfer procedure as such, but sets out the practical issues and requirements to guide and facilitate a skilled operator team to work out a suitable procedure for a specific LNG ship-shore custody transfer application.

Although this LNG Custody Transfer Handbook may contain much useful information, it is not specifically intended to work out procedures for ship-to-ship LNG transfer, custody transfer for LNG carriers with type C cargo tanks (IGC Code) or overland LNG custody transfer operations involving LNG trucks or trains. (Source: GIIGNL Custody Transfer Handbook, see link above)

Last modified: February 9, 2016