Update on Pyrolysis Gasoline

As we have received several enquiries regarding the current situation concerning the classification of Pyrolysis Gasoline, we would like to advise that the decision to re-evaluate the classification and carriage requirements of pyrolysis gasoline was made at the 11th Session of the IMO Working Group on the Evaluation of Safety and Pollution Hazards (ESPH 11), because of the variability of the composition of pyrolysis gasoline.  

The hazard profile originally assigned for pyrolysis gasoline was based on compositional information considered at BLG 5 (held in 1998). The United Kingdom has agreed to provide more information at BLG 10, along with a suggestion on how to classify the product and assign carriage requirements which would be a better representation of the product(s) currently shipped.  

ESPH 11 agreed to defer its decision on the classification and assignment of carriage requirements of pyrolysis gasoline until BLG 10. However, failure to provide the information could result in the product being classified as Pollution Category .X. and carried in Ship Type 1.  

In order to evaluate all of the products still outstanding, the Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP) held "ad hoc" meetings in November and February. The information from both of those meetings will be combined into one report for submission to BLG 10. Pyrolysis gasoline will be one of the substances evaluated in the report. 

The IMO has decided that all pyrolysis gasoline should be carried under that name, as a MARPOL Annex II product, irrespective of the benzene content. During BLG 10, INTERTANKO will be participating in the discussions regarding the classification of many substances including pyrolysis gasoline. Any decision on the classification or carriage requirements for pyrolysis gasoline will be reported to members as soon as possible.  

Contact: Margaret Doyle