No because the manufacturer applies for testing and examination in only one country.

The Evaluation Report which contains results of these tests and examinations may be used in all the countries which signed the Declaration of Mutual Confidence (DoMC) for delivering national type approvals without any further tests.

Even if the cost of an OIML Certificate issued under a DoMC is slightly higher than that of the current Certificates, the global cost for a manufacturer of measuring instruments decreases considering the "one-stop testing".