24. Despite the revocation of regulation 17(5) of the Dangerous Substances and Explosive Atmospheres Regulations 2002 (which saves byelaws made or having effect under section 9 of the Petroleum (Consolidation) Act 1928), byelaws made or having effect under section 9 of the Petroleum (Consolidation) Act 1928 which are in force immediately before the relevant date are to continue.