1. Tractor Operation

Operating a tractor over 20 PTO horsepower. This includes connecting and disconnecting equipment or any equipment parts to or from a tractor.

2. Equipment Operation

Operating or assisting to operate equipment listed (including starting, stopping, adjusting, feeding or any other activity involving physical contact associated with the operation) any of the following machines:

• Cornpicker, cotton picker, grain combine, hay mower, forage harvester, hay baler, potato digger, or mobile pea viner;
• Feed grinder, crop dryer, forage blower, auger conveyor, or the unloading mechanism of a nongravity-type self-unloading wagon or trailer; or
• Power post-hole digger, power post driver, or nonwalking-type rotary tiller.

3. Specialized Machinery

Operating or assisting to operate machinery listed below. This includes starting, stopping, adjusting , feeding or any other activity involving physical contact associated with operation of the listed machines. These machines include: trencher or earthmoving equipment; forklift; potato combine; power-driven circular, band or chain saw.

4. Livestock

Working on a farm in a yard, pen or stall with the following livestock: a bull, boar, or stud horse maintained for breeding purposes; or sow with suckling pigs; or cow with a newborn calf (with umbilical cord present).

5. Woodlot Operations

Felling, bucking, skidding, loading or unloading timber with butt diameter of more than 6 inches.

6. Ladder and Scaffold

Working from a ladder or scaffold at a height over 20 feet. This includes painting, repairing, or building structures, pruning trees, picking fruit, etc.

7. Transport

Driving a bus or automobile when transporting passengers, or riding on a tractor as a passenger or helper.

8. Toxic Environments

Working inside an upright silo within 2 weeks after silage has been added or when top unloading device is in operating position; a manure pit; a horizontal silo while operating a tractor for packing purposes; and in a fruit, forage, or grain storage designed to retain an oxygen deficient or toxic atmosphere.

9. Agricultural Chemicals

Handling or applying agricultural chemicals classified under the Federal Insecticide, Fungicide, and Rodenticide Act (7 U.S.C. 135 et. seq.) as Category I of toxicity, identified by the word “poison” and the “skull and crossbones” on the label; or Category II of toxicity, identified by the word “warning” on the label. These activities include cleaning or decontaminating equipment, disposal or return of empty containers, or serving as flagman for aircraft applying chemicals.

10. Blasting

Handling or using a blasting agent, including but not limited to, dynamite, black powder, sensitized ammonium nitrate, blasting caps, and primer cord.

11. Fertilizer

Transporting, transferring, or applying anhydrous ammonia.