UK List of Regulated substances and reportable substances originates from the amendment to the Poisons Act 1972 by the UK Deregulation Act 2015. It serves as a core legal instrument for the UK to prevent chemicals from being used in the illegal manufacture of explosives or causing harm, defining the statutory scope of regulated substances and reportable substances. The list system comprises the following four categories of substances:
Controlled Explosives Precursors and Controlled Poisons: Prior to supply, possession, or use, the corresponding license must be obtained in accordance with the law. Where the list sets concentration threshold limits (e.g., ammonium nitrate ≥16% nitrogen content, hydrochloric acid ≥10%), substances exceeding such thresholds are subject to strict licensing controls regarding public supply, possession, and use.
Reportable Explosives Precursors and Reportable Poisons: Such substances fall within the regulatory scope regardless of concentration (e.g., sulfur, high-concentration bleach). They are not necessarily prohibited per se, but suspicious transactions, theft, or significant loss must be subject to mandatory reporting obligations.
