Fall Harvest Weight Limits and Exemptions for Commercial and Farm Vehicles

Is it a commercial motor vehicle or an agricultural commercial motor vehicle?

That has been a hard question to make clear when discussing Act 377 and the new definition of an agricultural commercial motor vehicle (Ag CMV).  Now the fall harvest exemption applies and adds to the different weight allowance provided to agriculture. I wanted you to have some information on this for easy access as there will probably be questions over the harvest season.

For those trucks registered for over 50,000 GVW, the “fall harvest exemption” applies. This allows for a vehicle to exceed the 80,000 lbs or 20,000 lbs by not more than 15%.These vehicles will use the standard weight chart not the new IoH/Ag  CMV weight chart.The actual statutes are included at the end of this message for ease of reference.  NOTE: Corn silage is included with corn and there’s a document on file from the Secretary of DOT providing that guidance.

As you’ll note below in 348.17 (6)(b)(b)(3), until the sunset date of Act 377 this additional weight allowance for manure does not apply to IoH under this statute. The additional allowance is provided for under Act 377.

 A reminder that all categories of IoH, Ag CMV, and CMVs need to abide by any road or bridge postings. 

 These additional allowances do not apply on the Interstate Highway System. Why the width restriction for tractors and hours of operation have been removed and apply on the Interstate, I still caution operators when considering Interstate travel. While there’s no lower speed limit on the Interstate, the difference in speed and vehicle dimensions add to the risk for operating IoH on the Interstate system.

 NOTE:  The new weights provided for IoH and Ag CMV were effective in April 2014. As such permits to exceed the weight table and weight enforcement  are currently law. The delayed weight enforcement  provision is only for the Wisconsin State Patrol and only applies to Category A Farm Tractors and Category B Self-Propelled and towed IoH for planting, tillage, and cultivating plus it’s towing power unit.  Grain carts  and manure tankers are included under Category C under the IoH new definition.

 WI STATUTES:

348.17 Special or Seasonal Weight Limitations

(5) (a) >From September 1 to December 31 of each year, no permit shall be required for the transportation of corn, soybeans, potatoes, vegetables, or cranberries from the field to storage on the grower’s owned or leased land, from the field to initial storage at a location not owned or leased by the grower, or from the field to initial processing in a vehicle or combination of vehicles that exceeds the weight limitations under s. 348.15 by not more than 15 percent and that satisfies all of the following:

1. Has a registered gross weight of 50,000 pounds or more.

2. Is a motor truck, farm truck, road tractor, truck tractor, or farm truck tractor or such a vehicle combined with a semitrailer, trailer, or farm trailer, when the vehicle or combination is a commercial motor vehicle operated on a highway.

(b) This subsection does not apply to the national system of interstate and defense highways, except for that portion of I 39 between USH 51 and I 90/94.

(6)

(a) From September 1 to December 31 of each year, no permit shall be required for the transportation of manure to or from a farm in a vehicle or combination of vehicles that exceeds the weight limitations under s. 348.15 by not more than 15 percent and that satisfies any of the following:

1. Has a registered gross weight of 50,000 pounds or more.

2. Is a motor truck, farm truck, road tractor, truck tractor, or farm truck tractor or such a vehicle combined with a semitrailer, trailer, or farm trailer, when the vehicle or combination is a commercial motor vehicle operated on a highway.

3. Is an implement of husbandry. This subdivision does not apply from May 24, 2014, to January 1, 2020.

348.17(6)(b) (b) This subsection does not apply to the national system of interstate and defense highways.

History: 1991 a. 316; 1995 a. 348 ss. 11, 13 to 15, 17; 2005 a. 364; 2011 a. 52, 279; 2013 a. 217, 377.

If you have any questions, please contact Nick Baker at (608) 757-5698 or nick.baker@ces.uwex.edu

 

 

Sharing is Caring - Click Below to Share