Review of Weight Conversion Factors for Tires  

The Authority has reviewed and consulted on the existing Registry Procedure  that outlines the weight conversion factors for tires. The procedure addresses the term “calculated weight” in the Tires Regulation and how it is determined, in relation to both new tire supply data and the collection and management of used tires.

The weight conversion factors outlined in the procedure are based on the 18 category model established by Ontario Tire Stewardship (OTS) to allow producers to use their previously submitted tire supply data. Service providers (collectors, haulers, processors and retreaders) will also use weight conversion factors to determine the weight of used tires when they do not know the actual weight, and a weight conversion is permitted, as part of their annual reporting requirements, beginning in 2020.

Since OTS’s used tire program ended on December 31, 2018, along with the fact that the current conversion factors do not account for tires that were previously exempt, it was necessary to review the approach to determining calculated weight at this time. The Authority has posted a discussion paper further explaining the procedure and why a review was needed.

The Authority hosted two webinars to walk through the procedure and discuss whether there is a need to change it and the options for changing it. The results of the consultations will be used to determine how calculated weight will be established for tire supply data and any resulting changes will be reflected in an updated registry procedure. The updated procedure will be posted to this page when finalized.

Development of Tire Supply Audit Procedure

Once the review of the weight conversion factors is complete, the next step is to develop an audit procedure for new tire supply data.

Currently, most producers are using tire supply data that was previously submitted to OTS – this data does not require producers to provide an audit report. However, 2018 is the last year that tire producers will have submitted supply data to OTS, meaning that data from 2019 and beyond will be new data, not previously submitted, and will require an audit report. It is important to note that 2018 data, along with 2017 and 2016, will be used to establish producer collection targets for 2020, whereas 2019 data will not be reported until 2021.

The Authority will be consulting on the development of the tire supply audit procedure later this fall. The purpose of the consultation is to gain feedback during the development of the procedure and to ensure that producers understand their tire supply audit requirements now, even though 2019 supply data will not be reported until 2021.