This Decree of the Ministry of Agriculture, Environment and Regional Development, which is composed of 12 articles and seven Annexes, establishes requirements for the quality of: (1) solid fossil fuels which are designed to burn in combustion plants with a rated thermal input of up to 0.3 MW; (2) liquid petroleum fuels intended for combustion in stationary sources of air pollution (3) liquid and gaseous fuels which are intended for combustion in internal combustion engines and mobile sources of air pollution. The present Decree lays down also requirements for maintaining operational records, extent, type and method of providing data to the business that manufactures, imports and sells fuel and to the district office. Annex 1 specifies requirements for the quality of petrol, and Annex 2 requirements for the quality of diesel fuels.