Det anbefales, at kontrolmedarbejderne kontrollerer status for sådanne identificerede værkstedskort med de kortudstedende myndigheder [3] for at fastslå, om de var gyldige på det tidspunkt, de blev anvendt til at kalibrere køretøjet.
It is recommended that control officers check with their Card Issuing Authority [3] the status of such workshop cards that have been identified, and whether they were valid at the time they were used to calibrate the vehicle unit.