To reduce greenhouse gas emissions from light fuel oil, an obligation to blend bioliquids with light fuel oil used for heating buildings was approved by Parliament in February 2019. According to the Act on the Promotion of the Use of Biofuel Oil, the proportion of biofuel oil in the light fuel oil used for heating and machinery must be at least 3 per cent in 2021 and increasing thereafter by one per cent per year to at least 10 per cent in 2028. However, it is intended to tighten the obligation to distribute biofuel oil, and the proposed changes will be presented by the Government in the autumn of 2022. According to the stricter obligation, the share of biofuel oil should increase annually by 4.6 per cent from 2025 until 2030, from which the share of biofuel oil in heating should be 30 per cent. The effects of promoting the use of bioliquids on greenhouse gas emissions in heating buildings have been calculated in accordance with the stricter obligation - assuming that from 2030, the share of bioliquids in light fuel oil will be 30 per cent.