... 2014; To and Lee, 2014;Berliner and Prakash, 2013;Delmas and Montiel, 2008;Prakash and Potoski, 2007;Massoud et al., 2010); relation between ISO 14001 systems and other environmental management systems as well as systems for management in other areas like quality, safety (Testa et al., 2014;Granly and Welo, 2014;Neugebauer, 2012;Low Sui and Tan, 2005;Heras and Arana, 2010); enhancement of environmental management systems in line with ISO 14001 and its impact on their efficiency and effectiveness (Matuszak-Flejszman, 2010); evaluation of environmental audit quality (Prajogo et al., 2016;Heras-Saizabitoria et al., 2013); comparing the outcomes of environmental and financial operations of businesses which have implemented ISO 14001 EMSs and those which have not done it (Zobel, 2013;Naudé et al., 2011;Gomez and Rodriguez, 2011); application of environmental indicators (Comoglio and Botta, 2012); analysis of the human factor significance (commitment of employees, executives, the role of the person responsible for the system) for the efficiency of management in conformity with ISO 14001 (Rodríguezet al., 2011;Perez et al., 2009). The limited number of studies which concerned the analysis of environmental impact of system implementation were devoted to the assessment of the relation between the above and the attributes such as the size of the organisation, its ownership (private/public), sector (manufacturing/ service), stability/changeability of the applied technologies, amount of time for which the system has been in operation in a given organisation, possession of quality management system in conformity with ISO 9001, or finally, the extrinsic/intrinsic motivation for the system implementation (Matuszak-Flejszman, 2010;Prajogo et al., 2012;Boiral and Henri, 2012;Christmann and Taylor, 2006;Fura, 2013;Castka and Prajogo, 2013;Gavronski et al., 2013). ...