Prawo Zamówień Publicznych no. 1/2015 Ordering party’s liability for payment of subcontractor’s remuneration in the light of the Public Procurement Act Przemysław Drapała Renegotiation of a public procurement contract Michał Drozdowicz Selection of subcontractors for public procurement contracts Włodzimierz Dzierżanowski Liability of a party promising to provide a public procurement contractor with access to the capacities Zdzisław Gordon Burden of proof when examining elements affecting the price Magdalena Grabarczyk The requirement of employment of personnel under a contract of employment by the contractor of a public contract Krzysztof Horubski, Tadeusz Kocowski Qualitative criteria for bid assessment Krzysztof Kula Environmental aspects in public procurement Franciszek Łapecki The role of additional guarantees in construction Jolanta Loranc-Borkowska Kryterium „aspekty innowacyjne” Izabela Rzepkowska The new approach to exclusion of a dishonest contractor from public procurement bidding Ryszard Szostak Explanation of the abnormally low priced bid Anna K. Szymańska Joint implementation of a public contract -- selected issues Ewa Zielińska