improvement of fuel quality with regard to the permitted sulfur content, - energy efficiency, - use of renewable energy sources, - application of the best available techniques (BRT) with regard to reducing SO2 emissions in industrial plants that use solid fuels (coal), and which are prescribed by the conclusions of the NRT for a particular type of plant. The implementation of these measures is based on the following regulations: Regulation on the quality of liquid petroleum fuels, Regulation on limit values of air pollutant emissions from stationary sources, Law on efficient use of energy in direct consumption, Regulation on the minimum share of electricity produced from renewable energy sources and cogeneration, the production of which is encouraged, the Regulation on the use of renewable energy sources and cogeneration, the Regulation on the quality of biofuels and the Regulation on the procedure for establishing unified environmental protection conditions. The improvement of fuel quality, with regard to the permitted sulfur content, is prescribed by the Regulation on the quality of liquid petroleum fuels (Official Gazette No. 113/2013). Decisions on determining the annual amount of liquid petroleum fuels that may be put into circulation on the domestic market, which do not comply with the limit values and other characteristics of the quality of liquid petroleum fuels, which the Government of the Republic of Croatia adopts annually, are also significant for this reduction technique. It can be determined that in the period from 2008 to 2011, the amount of gas oil, for which a deviation of the amount of total sulfur is allowed, at most: 0.5 % m/m, was reduced by 33%, the amount of fuel oil, for which a deviation of the amount is allowed of total sulphur, maximum: 2% m/m, reduced by 100% (i.e. in the period until the end of 2012, it is not allowed to use fuel oil with a permitted deviation of the amount of total sulphur, maximum: 2% m/m) and the amount of fuel oil, which is allowed to deviate from the amount of total sulfur, maximum: 3% m/m, reduced by 39%. This measure is also an intersectoral measure, the implementation of which, in addition to fuel quality improvement, also depends on and results from the implementation of measures to encourage the growth of energy efficiency (Chapter 12.1) and the use of 