175.—(3) Subject to section 176(4), the Secretary of State shall, if either the appellant or the hazardous substances authority so desire, give each of them an opportunity of appearing before and being heard by a person appointed by the Secretary of State for the purpose.
(6) Schedule 6 applies to appeals under section 174, including appeals under that section as applied by regulations under section 25(1) of the Planning (Hazardous Substances) Act 1990.