European Parliament established new requirements for accreditation and market supervision, concerning to the condition of new product introducing to the market. It was taken the rule that the member countries shouldn't poses more than one country accredited body. It was emphasized the meaning of certificates, own by companies on products, certifying the conformity by accredited unit, where the community legislation needn't such certificates. The market supervision bodies should consider its in proper manner during control currying out. In article the new demands for certification units were presented.