Intended for the Resource Conservation and Recovery Act (RCRA) solid hazardous waste and the trace liquids associated with this waste. Black base with black tops to distinguish the waste stream. Leak-resistant gasketed top with 7" port opening. DOT collectors are designed to be transported without being overpacked by the waste haulers. Non-DOT collectors are made from a minimum of 70% recycled plastic. Clear tops with multiple opening styles accommodate different types of waste and environments. Visual, audible, tactile (VAT) perimeter locks to ensure the lid is securely attached to the base and to add security against tampering.