Hazardous substances – Brenntag Chemicals site
19.—(1) The Silvertown Tunnel must not open for public use until the hazardous substances consent for the Brenntag Inorganic Chemicals Ltd site has been revoked or modified in accordance with the Planning (Hazardous Substances) Act 1990, and in the case of a modification details of the relevant modifications have been submitted to the Health and Safety Executive, and the Health and Safety Executive has advised the Secretary of State in writing that it does not advise against the authorised development.