In order to guarantee the quality of the services, Sociedad Técnica de Inspección S.A. (STI SA), since 2000, has the accreditation of the National Institute of Normalization (INN), as Product Certification Body and Inspection Body, according to the standards NCh-ISO17065 and NCh-ISO17020 respectively, which allows a high degree of competence. Since its inception, STI S.A. has an important staff of qualified professionals and high level technicians, who through continuous training, allows us to have level I and II inspectors in non-destructive testing techniques according to ASNT's American standard SNT-TC-1A 2006 . In addition, the recognized experience in the metalworking area, has allowed STI S.A. to be part of commissions of both the SEC and the INN for the preparation of protocols and NCh standards for the certification of products in the area of fuels, liquefied petroleum gas and dangerous substances.