Under the latest reform of the Common Agricultural Policy, 2015 was the first year when greening requirements were imple¬mented. Legal rules obliged farmers to move towards more environmentally-friendly land use practices. The aim of this paper is to present the first effects of the implementation of greening in Poland. The paper is based on an FADN panel of 7.4 thou¬sand private farms participated in the Single Area Payment Scheme in Poland. The sample also enabled to identify organi¬sational changes in agricultural production after greening. Results suggest that Polish farms have adapted well to greening requirements and the new system has not caused productivity and profitability of Polish farms to decrease in 2015.