Prawo Zamówień Publicznych no. 2/2020 On the implementation of the new Public Procurement Law – a speech given during the 7th National Conference of the PPL “Granting and performing public procurement orders in light of the new law” Hubert Nowak On the supervision of procurement contracts Krzysztof Horubski, Tadeusz Kocowski Cooperation between contracting authorities and contractors in public procurement contracts Zdzisław Gordon The impact of new legal norms on the construction process Andrzej Borowicz Changes to the appeal proceedings before the National Appeals Chamber Małgorzata Rakowska Conditions of participating in proceedings and the contractor’s skills necessary to perform the contract Maciej Lubiszewski Selecting the most advantageous offer from a case law perspective Magdalena Grabarczyk Bid bond under the new provisions of the PPL Katarzyna Prowadzisz On issues concerning the public procurement effectiveness principle Bożena Czyżewska Restrictions on the admissibility of in-house public procurement. Glossary to the judgment of the Court of Justice of 3 October 2019 in the case of Irgita, C-285/18 Franciszek Łapecki VII ogólnopolska konferencja naukowa pt. "Zamówienia publiczne w świetle nowej ustawy" Żaneta Urbaniak