How many Q Plates can be purchased per CRN during a Sales Period? Tyran 22 June 2022 23:56 Updated Follow Customers are able to purchase one (1) Q Plate per Queensland Customer Reference Number (CRN) in each Sales Period. Related articles Why are Q Plates no longer available for sale permanently? When are the Sales Period dates? Can I buy Q Plates over the phone during a Sales Period? How many Q Plates are available to buy during each Sales Period? How do I get a Q Plate box and certificate? Comments 0 comments Article is closed for comments.