Compulsory Liability Insurance of Hazardous Substances, Hazardous Waste and Cylinder Gas, as a result of accidents that may occur in the performance of professional activities of natural and legal persons involved in the collection, transportation, temporary and interim storage, recovery, reuse and disposal of hazardous wastes within the scope of the Environmental Law and filling of petroleum gas. Insurance is provided against material and bodily damages to be incurred by third parties as a result of explosion, gas leakage, fire in the places where the cylinders are kept for use.