Nowdays, ISO 9001 is a well-knowm standard by all responsible managers being a "business" standard. Certifications are the proof of quality commitement and ability to have o vast problem perspective and to offer eficient solutions for them. Optimising the processes, problem identification and loss diminuition, professional risk control, productivity growth in a comfortable enviroment, developing eficiency , proactive management of enviromental impact. For Miron-Construct, ISO Certificates are the implementing guarantee and a good practical help, guaranteed by a conformity certification organism.