Shipping Quote in Sub Header
Logistics Term

Frost Laws Definition

What is the meaning of Frost Laws Definition?

Frost laws are seasonal guidelines and restrictions on traffic speed and weight limit on the road due to thaw weakening. Frost is common in regions where temperatures quickly heat ‌after a freezing winter. This is common at the beginning of spring when the roads are extremely soft because of the moisture trapped below the surface. This impacts the road’s structural support, which remains a significant problem, especially in the trucking industry, until it dries out and regains stability. Frost laws are specific to different states.

Frost Laws Definition - In The Field


You must understand the restrictions specific to your state before you get behind the wheels. For instance, in Michigan, the maximum weight limit on the roadway is usually reduced by 25%, while on other U.S. roads, it is reduced by 35%. Seemingly, besides the frost laws common in March, April, and May, other states might decide to have more frost restrictions, especially in areas of unprecedented harsh climatic conditions. Regarding speed limit, vehicles should never exceed 35 miles per hour when moving on reduced-loads roads.

Explore Other Wide Load Transport Terms