§ '.—(1) The Hydrocarbon Oil Duties Act 1979 shall be amended as mentioned in subsections (2) to (4) below.
§ (2) In section 20 (contaminated or accidentally mixed oil), after subsection (3) there shall be inserted the following subsection—
§ "(4) The power to make a payment to a person under subsection (2) above in relation to oils that have become accidentally mixed does not apply in relation to a mixture in respect of which he is liable to pay duty under section 20AAA below."
§ (3) After section 20A there shall be inserted the following sections—