475. The owner of a road vehicle moving on a public highway whose mass or total loaded mass, as the case may be, exceeds that declared in the registration application form of such vehicle is guilty of an offence and is liable, in addition to costs and to the difference in the duties he should have paid, to a fine of $100 to $500 for the first offence, to a fine of $300 to $600 for the second offence, and to a fine of $500 to $1 000 for any subsequent offence.