Types of Waste High-level waste(HLW Transuranic waste( tru) LOW-level waste(LLW) Uranium Mill tailings This categorization varies slightly from country to country but in principle the main criteria for determining the type of waste are derived from radioactive content and half-life, i. e the time taken for the waste to lose half of its radioactivityTypes of Waste • High-level waste (HLW) • Transuranic waste (TRU) • Low-level waste (LLW) • Uranium Mill Tailings This categorization varies slightly from country to country, but in principle the main criteria for determining the type of waste are derived from radioactive content and half-life, i.e. the time taken for the waste to lose half of its radioactivity