Update to Commercial Vehicle Dimensions and Weights
Saskatchewan Regulation 34/2026, issued under The Highways and Transportation Act, 1997, constitutes an amendment package to The Vehicle Weight and Dimension Regulations, 2010. The Order in Council (194/2026) substantially modernizes definitions, permit structures, seasonal weight rules, and the technical standards governing commercial and specialized vehicle configurations on provincial and municipal highways.
The amendments revise permitting and fee structures, particularly for over-height vehicles. A new section 23.1 establishes “high-clearance corridor routes” across key provincial highways and grid roads. These corridors are subject to a revised fee model: a base permit fee of $15 applies, with additional per-kilometre and height-based charges for oversized loads exceeding specified thresholds. However, exemptions are introduced for agricultural and resource-related transport activities, including grain bins, livestock shelters, hay, straw, and short-distance equipment movements, reflecting an intent to support rural and agricultural logistics.
A major component of the regulation is the complete substitution of Appendix A, which now sets out an extensive framework of vehicle configurations, dimensional limits, and axle-based weight thresholds. Thirteen standardized vehicle configurations are defined, ranging from straight trucks and truck-trailer combinations to complex multi-trailer systems such as A-trains, B-trains, C-trains, and semi-trailer combinations with converter dollies or A- and C-dollies. Each configuration includes detailed limits for length, width, height, axle spacing, overhang, and inter-vehicle coupling geometry.
The revised appendix also establishes differentiated weight limits for primary highways versus secondary and municipal roads, as well as distinct thresholds for winter weight seasons. Across configurations, winter periods generally permit higher axle and gross vehicle weights, particularly for tandem and tridem axle groups, reflecting reduced pavement damage risk on frozen ground conditions. Conversely, stricter limits apply outside winter seasons to protect infrastructure integrity.
The regulations further standardize axle group definitions and reinforce spacing requirements, ensuring consistent enforcement across vehicle types. Restrictions on full trailer weights, semi-trailer combinations, and multi-trailer configurations are carefully calibrated, including caps tied to axle group spreads and highway classifications listed in supporting appendices.
Overall, Saskatchewan Regulations 34/2026 represent a significant technical overhaul of the province’s heavy vehicle regulatory framework. The amendments are aimed at improving the clarity in definitions, modernize permitting systems, introduce more sophisticated corridor-based fee structures, and updates dimensional and weight standards to reflect contemporary transportation practices and infrastructure management needs.
Saskatchewan (34/2026) Jun 2, 2026
Disclaimer: Insights are for informational purposes only and does not reflect RRI’s official position or constitute legal opinion.
