MTO has released their 2016 version of the Heavy Truck Weights and Dimensions Guidebook.
The comprehensive document can be downloaded here: 2016 VW&D in Ontario Public Guide
It covers all aspects of weights and dimensions for trucking operations in Ontario, including a full description of each of the designated Safe, Productive and Infrastructure Friendly (SPIF) vehicles. Also included are vehicle gross weight tables, workbook exercises for determining applicable weights and dimensions for non-spif vehicles protected by grandfathering and the most up to date regulatory amendments including the allowances for extended tractors on b-trains and the details for the spec’ing of full length boat tail aerodynamic devices.
OTA members with questions about vehicle weights and dimensions can contact weights&dimensions@ontruck.org for more information.