The validity and reliability of accredited services can be verified using the documents issued by CABs performing conformity assessments:
For businesses the decision to use the services of accredited CABs is generally voluntary, but the number of sectors for which national and EU standards require the conformity of a product or service is constantly increasing, in particular for obtaining tenders in both the public and private sectors.
Accredited certifications, inspections, verifications, tests and calibrations are voluntary choices for private and public organizations and businesses in order to gain competitiveness, to strengthen reputation and their offer of goods or services, and to find new business opportunities, also in the international market.
There are products and services which can be placed on the market only after a verification of conformity by an accredited CAB, such as products with the CE marking, agrifood products or environmental and energy efficiency services. A rising number of tender contracts also require a conformity assessment issued under accreditation.