Out of Field Rules – 2021


Age of driver:

Age of driver MUST be 16 years of age or older and able to operate the tractor in a safe and proper manner. Those under 18 years of age MUST have a parent/guardian signed insurance waiver, good for the season, on file with OSATPA

No year limit on age of tractor.

Classes: 10k pounds, 12.5k pounds, 15k pounds

Tires: 20.8 Radials maximum allowed, Ag tires only.  No Alterations permitted.  2WD only.  No Duals.

Speed:  Speed limit – 6 MPH.  Shifting of torque allowed.

Fuel: Diesel only.

No water injection.  No aftermarket intercoolers or aftercoolers.  Un-modified factory intercoolers or aftercoolers are allowed.

RPM’s: Maximum 3000. The governor lever must come to the governor stop on all injection pumps.

Hitches/Draw Bars :

Draw bars must not exceed 18 inches in height or be less than 18 inches from the center of the axle to the hooking point. No part of draw bar may extend rearward beyond the point of hook. Draw bars must be stationary in all directions. No clevises. Hitch material cannot be thinner than ¾” and not thicker than 1.25”. Hitch has to a 3.75” hole with 1” material thickness around the hole or a straight clevis bolted or pinned tightly to the drawbar with a minimum of 3.75” hole. Hitches and drawbars must be stationary in all directions. Hitches or drawbars cannot be moved when pulling down the track.

No weights behind the rear axle.