These Regulations amend Schedule 1A to the Poisons Act 1972 (c. 66) (“the Act”) to include sulfuric acid in the list of regulated explosives precursors where it is concentrated above 15% weight in weight, and to include aluminium powders and magnesium powders (each above a concentration threshold of 70%, with a particle size less than 200μm), and magnesium nitrate hexahydrate in the list of reportable explosives precursors.