ENI number

It is a unique, eight-digit identifier that is attached to a hull for its entire lifetime, independent of the vessel's current name or flag.

ENI was introduced by the Inland Transport Committee of the United Nations Economic Commission for Europe in their meeting on 11–13 October 2006 in Geneva.

[1] The ENI number is transmitted by Inland-Automatic Identification System transponders.

Not all European vessels are required to carry an ENI number.

As of April 2007, a vessel must have an ENI if it operates on inland waterways and meets any of the following criteria: is over 20 metres (66 ft) in length; is greater than 100 cubic metres (3,531 cu ft) in volume; is a tug or push boat that operates with a qualifying vessel; is a passenger ship; or is a floating installation/equipment.