Within the EU ETS, the covered sectors, which account for about 45% of EU emissions, must reduce their emissions by 43% by 2030 compared to 2005. According to the 2030 Envirostrategy, Slovakia has also set the target as its national target for ETS. The high emission intensity of the Slovak economy suggests that the cost of economic adjustment for energy-intensive sectors is likely to be high, but the intensity may also indicate that the country has great potential for cost-effective emission reductions (if adequate and welltargeted policies and investments exist). According to scenarios with additional measures (WAM) resulting from WB modelling, a reduction of CO emissions by 53.46 % should be achieved in the EU ETS in 2030 compared to 2005 levels. According to scenarios with additional measures (WAM) modelled in the SHMI, the ETS should achieve reductions of total emissions by 40.5% in 2030 compared to 2005. Thus, additional efforts beyond the measures in the WAM scenarios are envisaged on the Slovak side to meet the national emission reduction target in the ETS sector.