81. The Société may refuse to issue a licence or to change the class of or add another class to a licence if the applicant(1) refuses to undergo a medical examination or assessment under section 64, 73, 76.1.2, 76.1.4 or 76.1.4.1 or fails to submit the report of such an examination or assessment to it;
(2) according to a report of an examination or assessment carried out under section 64, 73, 76.1.2, 76.1.4 or 76.1.4.1 or a report referred to in section 603, suffers from an illness or deficiency or is in a condition which under the medical or health standards prescribed by regulation is relatively inconsistent with the driving of a road vehicle corresponding to the class of licence applied for;
(3) according to the report of an examination or assessment carried out under section 64, 73, 76.1.2, 76.1.4 or 76.1.4.1 or a report referred to in section 603, suffers from an illness or deficiency or is in a condition not covered by the medical or health standards prescribed by regulation but which, in the opinion of a health care professional or such other professional as the Société may designate by name or of a person authorized by an alcohol and drug rehabilitation centre, is incompatible with the driving of a road vehicle corresponding to the class of licence applied for;
(4) refuses to undergo or fails a proficiency examination;
(5) is indebted to the Société in respect of the amounts prescribed in any of sections 21, 31.1, 69 and 93.1 or in respect of the fee exigible for the issue of a certificate of mechanical inspection, an inspection sticker or a photometric inspection certificate.