The Office shall issue and amend the licenses for the generation, distribution, trade and public utility supply of electric energy, for the production of district heat in the authorized power plants, as well as for the distribution, supply, trade and public utility supply of gas, issue establishment licenses of power plants, approve the general terms of electric energy supply as well as the business codes of the licence holders taking into consideration the opinion of the consumer interest representation organizations, approve the restriction lists, determine the sphere of information to be disclosed, prepare administrative prices of natural gas, electric energy and heat energy produced in the authorized power plants, and the conditions of price application for decision-making. Besides, the MEH investigates customer complaints, assert the protection of consumer interests, operates the Council of Energy Interest Representation, cooperates in some specific tasks of the Government connected with energy saving and collects, evaluates and stores information about turnover and use of electricity and gas.