OVERSIZE AND OVERWEIGHT PERMIT LAWS AND REGULATIONS General Regulations
Permit Axle Weight Distribution
The law requires reasonable distribution of axle weight on tandem, tridum and quadrum axle groups. If a tandem, tridum or quadrum axle group is permitted for a weight which is less than or equal to the legal axle weight, then the axle must comply with the legal axle weight distribution. If the axle group is permitted for a weight which exceeds the legal axle weight, then the axle must comply with the following:
| Tandem axles on vehicles with permits are properly distributed if neither of the individual axles carries more than 60% or less than 40% of the total tandem weight shown on the permit. |
| Tridum axles on vehicles with permits are properly distributed if none of the individual axles carries more than 40% or less than 25% of the total tridum weight shown on the permit. |
| Quadrum axles on vehicles with permits are properly distributed if none of the individual axles carries more than 30% or less than 20% of the total quadrum weight shown on the permit. |
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