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HMRC internal manual

Oils Technical Manual

Relevant Law: Hydrocarbon oil (designated markers) Regulations 1996

For the purposes of the Hydrocarbon Oil Duties Act 1979, Section 24A these are:

Euromarker and 1,4-dihydroxanthraquinone - this is commonly known as ‘quinizarin’ - used for gas oil and light furnace fuel marking

and Euromarker and ‘coumarin’ - used for kerosene marking

in addition, Solvent Red dye is added to Gas oil.

For subsequent marker regulations please also refer to:-

HCOTEG36500 ‘Hydrocarbon Oil (Marking) Regulations 2002’, and to HCOTEG37500 ‘The Hydrocarbon Oil (Registered Remote Markers) Regulations 2005, and the Hydrocarbon Oil (Marking) (Amendment) Regulations 2007, HCOTEG36550.