Prawo Zamówień Publicznych no. 1/2020 The principle of efficiency in the new Public Procurement Law Michał Kania The conditions required from contractors in the new approach Andrzela Gawrońska-Baran, Włodzimierz Dzierżanowski A general approach to the principle of actually executing public procurement Franciszek Łapecki The legal meaning of acceptance of an object of public procurement Jolanta Loranc-Borkowska The contractor’s interest as grounds for appeal and complaint proceedings in public procurement cases Joanna May On certain obligatory clauses in contracts for construction work Karol Brózda The role of public procurement in the implementation of the cohesion policy 2014-2020 Agnieszka Piwowarczyk Z problematyki przestępnego wyłudzenia zamówienia publicznego Ewa Plebanek On enhancements to the scope of responsibility for breaches of public finance discipline during awarding public procurement contracts Mateusz Winiarz Comment to the judgement of the Court of Justice of 3 October 2019 (C-267/18) Żaneta Urbaniak