9. (3) The number plates for a motor vehicle, other than a motorcycle or a motor assisted bicycle, shall be attached to and exposed in a conspicuous position on the front and rear of the motor vehicle. R.R.O. 1990, Reg. 628, s. 9 (3).
I'm curious what impact the officer's written description of the offense on the ticket has on the application of the law. I believe he did record the correct section of the Highway Traffic Act which might be all that matters.