.A.S.A. group of companies continually improves its services, what is confirmed by numerous quality certificates. .A.S.A. has certificates awarded in accordance with international standards ISO 14001, ISO 9001 and OHSAS 18001. This means policy of continual improvement of internal organization system and constitutes guarantee of high quality of services.
Certificates are issued for certain types of activities, including, but not limited to collection, transportation, segregation and storage of waste, road cleaning and winter roads maintenance and many other services.
Integrated management system is compulsory for all companies of .A.S.A. group.