256. Every altered vehicle must be submitted to a mechanical inspection by an inspector of the Régie, in conformity with the regulations of the Government.
The certificate of inspection and a description of the alterations must be transmitted to the Régie. Where the certificate attests that the vehicle may be driven in safety, the Régie shall authorize the vehicle to be driven on a public highway.
Where the certificate of mechanical inspection shows that the vehicle is likely to constitute a hazard, the Régie may refuse to register it or, if the vehicle is already registered, order the withdrawal of the registration certificate and registration plate.