The head of Ukraine Petro Poroshenko has signed the law on the exemption of international technical assistance to the Chernobyl nuclear power plant, informs a press-service of the President on the first day of the week. "Document eliminated the gaps in the tax legislation regarding the features of the implementation of projects of international technical assistance at the Chernobyl nuclear power plant ", - says the press service. According to the document the implementers of the projects of international technical assistance at the Chernobyl nuclear power plant are exempt from the requirement to register with the tax authority. "The rule is supplemented by the provision for the exemption from taxation of the profits of SSE ChNPP and profit of plants, obtained through international technical assistance or for the account of funds provided in the state budget as the contribution of Ukraine in the Chernobyl Shelter Fund for the period of preparation for decommissioning and decommissioning of the Chernobyl NPP and transformation of the Shelter to an environmentally safe system," stressed the press service. The accident at the Ukrainian Chernobyl nuclear power plant occurred on 26 April 1986. Exploded the fourth unit of the plant. The total area of radioactive contamination in Belarus amounted to about 46, 5 thousand square kilometers (23% of total area). In Ukraine were contaminated with 50 thousand square kilometers in 12 areas. In addition, radioactive contamination damage 19 Russian regions with the total area of about 60 thousand square kilometers and a population of 2, 6 million people.