What fredr123 said regarding the process is correct.
However, removing all demerits or changing a ticket to a registered owner type is no more. Now all they can do is remove some of the demerits, most likely by changing the ticket to one of a lower offence. They cannot remove them completely.
A registered owner ticket also does not affect insurance, it's like a parking ticket.
For the news story about the change, see:
http://www.cbc.ca/canada/edmonton/st...ic-ticket.html