Prawo Zamówień Publicznych no. 3/2021 The principle of proportionality under the New Public Procurement Law in light of European regulations Aleksandra Sołtysińska Qualifications of civil servants in local public administration in the field of public procurement Małgorzata Mędrala The issue of contractual penalties in public construction contract Ewa Zielińska Professionalisation and the stimulation of cross-border procurement Franciszek Łapecki The Contractor’s experience versus the individual experience of its employees as a measure of credibility when bidding for public contracts Izabela Niedziałek-Bujak Breach of the principle of awarding as the basis of appeal to the National Appeals Chamber Małgorzata Nyc-Zimny On the need for further rationalisation of the scope of subjective liability for infringements of public finance discipline in public procurement Ewaryst Kowalczyk The importance of life cycle cost in public procurement Maciej Sarnowski Consequences of advice given by a contractor to the contracting authority in preparation for the award of a public contract Monika Szymanowska Protection of disabled people in public procurement Marcin Pleśniak The implementation of EU regulations on registers and lists of reliable contractors in Polish and Spanish public procurement law Grzegorz Stankiewicz Problems of pre-contractual liability for damages in public procurement Commentary to the resolution of the Supreme Court of 25 February 2021, case file No. III CZP 16/20 Żaneta Urbaniak