# The Hydrocarbon Oil (Marking) Regulations 2002, Regulation 3: Prescribed markers and colouring substance

Extent: E+W+S+N.I.

(1) The following markers and colouring substance are prescribed by these Regulations—
(a) for gas oil , biodiesel and light oil, the markers described in paragraph (2)(a), (b), (d) and (e) and the colouring substance described in paragraph (3);
(b) for kerosene, the markers described in paragraph (2)(a), (c), (d) and (e) ;
(c) for bioblend that is a mixture of biodiesel and gas oil, the markers described in paragraph (2)(a), (b), (d) and (e) and the colouring substance described in paragraph (3);
(d) for bioblend that is a mixture of biodiesel and kerosene, the markers described in paragraph (2)(a), (c), (d) and (e).
(2) The markers are—
(a) the general marker added in the proportion of not less than 3 kilograms per 1,000,000 litres of oil;
(b) quinizarin added in the proportion of not less than 1.75 kilograms per 1,000,000 litres of oil;
(c) coumarin added in the proportion of not less than 2 kilograms per 1,000,000 litres of oil;
(d) the common United Kingdom fiscal marker added in the proportion of not less than 2.5 kilograms per 1,000,000 litres of oil;
(e) n-butyl phenyl ether added in the proportion of not less than 9.5 kilograms and not more than 14.25 kilograms per 1,000,000 litres of oil.
(3) The colouring substance is not less than 4 kilograms of solvent red per 1,000,000 litres of oil and not less than 0.4 kilograms of solvent orange per 1,000,000 litres of oil.
(4) For the purposes of paragraph 1(c), the proportions described in regulation 3(2)(a), (b), (d) and (3) apply as if the bioblend consisted entirely of gas oil.
(5) For the purposes of paragraph 1(d), the proportions described in regulation 3(2)(a), (c) and (d) apply as if the bioblend consisted entirely of kerosene.

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Source: https://www.legislation.gov.uk/uksi/2002/1773/regulation/3 (the official version)
Page: https://openlegislation.uk/hydrocarbon-oil-marking-regulations-2002/regulation-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.