9.1. An apprentice who has completed the apprenticeship period and who holds an attestation issued by the Association québécoise du propane inc., according to which the apprentice passed the course entitled “Cours de formation pour les chauffeurs de camion de propane en vrac” given by the association, is exempt from the qualification examination required for the issue of the certificate in propane handling provided for in paragraph 10 of section 3. The apprentice must, however, pay the duties exigible for the issue of the certificate of qualification following an exemption from the qualification examination.