Class Code 0050
Farm Machinery Operation
Class code 0050 covers workers who operate and directly handle farm machinery in California fields, yards and agricultural facilities. The WCIRB-approved pure premium rate for 9/1/2026 is $5.689 per $100 of payroll, a baseline for expected claim costs for this higher-hazard work.
What Class Code 0050 Covers
This classification applies to employees whose primary job is operating self-propelled or tow-behind farm machinery in the production of crops or related agricultural tasks. Typical equipment included: tractors (with attachments), combines and headers, balers, forage harvesters, mowers, PTO-driven implements, sprayers, loaders and tillage equipment. It covers on-farm operation, moving equipment between fields, loading/unloading implements, and making minor adjustments or attachments in the field. Routine shop repairs that are a small part of an operator's duties are covered here, but full-time mechanics or heavy repair work performed in a shop may be assigned to a different classification. The code does not apply to administrative staff, retail equipment salespersons or purely hand-labor crop workers whose duties do not involve machinery operation.
Who It Applies To
- Tractor and implement operators on row-crop and specialty farms
- Combine and custom harvester operators who travel between farms
- Dairy and feedlot workers operating feed mixers, forage harvesters and bale handlers
- Vineyard and orchard crews operating sprayers, mowers and canopy-management machines
- Agricultural contractors who provide mechanized field work (tillage, planting, harvesting)
- Farm equipment rental or cooperative equipment operators
Common Job Duties
- Operating tractors with plows, disk harrows, planters and seeders
- Running combines, grain heads, forage harvesters and baling equipment during harvest
- Attaching, adjusting and operating PTO-driven implements and hydraulic attachments
- Sprayer operation for crop protection and fertilizer application, including tank mixing and calibration
- Loading/unloading trailers and moving machinery between fields on public roads
- Performing basic field maintenance and safety checks, fueling, greasing and replacing guards
Common Injury Risks
Understanding the $5.689 Rate
The pure premium rate of $5.689 per $100 of payroll represents the insurers expected average loss costs for this class and is the starting point for premium calculation. Insurers multiply that rate by your payroll in hundreds of dollars and then apply experience modification, policy-level adjustments, state assessments, and underwriting credits or debits to determine the final premium.
Cal/OSHA Compliance Requirements
Cal/OSHA enforces specific agricultural safety requirements that apply to farm machinery operators, including proper machine guarding (PTO shields and moving parts), provision of rollover protective structures (ROPS) with seat belts on tractors, lockout/tagout for servicing equipment, and the Heat Illness Prevention standard (Title 8 §3395). Employers must provide training in a language workers understand, PPE for pesticide handling and respirator programs where needed, and maintain records of training and injuries as required by Title 8 Agricultural Safety Orders.
How Key HR Helps Employers Under Class Code 0050
A PEO like Key HR can lower your workers comp exposure by centralizing claims management, enforcing return-to-work programs and delivering targeted safety training (ROPS use, PTO guarding, sprayer calibration, heat illness prevention). Key HR also helps ensure proper classification and payroll reporting, coordinates regulatory compliance documentation for Cal/OSHA inspections, and negotiates workers' comp placements to reduce premium volatility.
Get a QuoteFrequently Asked Questions
Does Class Code 0050 include mechanics who repair tractors in the shop?
If an employees principal duty is operating farm machinery in the field, they fall under 0050 even if they perform light adjustments. Full-time mechanics or employees whose main job is heavy shop repairs, engine rebuilding, welding or troubleshooting will typically be classified under a shop or mechanic class rather than 0050.
Are custom harvesters and contractors covered under this code when they move between farms?
Yes. Operators who perform mechanized harvesting, tillage or planting for multiple farms are commonly classified in 0050 when their primary function is equipment operation. Be sure to report actual payroll and any hired labor arrangements so classification and premium allocation are accurate.
What steps reduce claims and lower premiums for farm machinery operators?
Implementing and documenting operator training, using ROPS and seat belts, ensuring PTO and implement guarding, enforcing lockout/tagout for maintenance, keeping preventive maintenance logs, and a rapid-reporting claims process with early return-to-work are the most effective measures to reduce losses and improve your experience modification.
Quick Facts
- Class Code
- 0050
- Classification
- Farm Machinery Operation
- Pure Premium Rate
- $5.689 / $100 payroll
- Effective Date
- September 1, 2026
- Source
- WCIRB Approved Filing
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