3 Pa. Stat. § 1902
The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Advisory board." The Farm Safety and Occupational Health Advisory Board created in section 3.
"Agricultural chemical agent." Any substance or mixture of substances used in agricultural production which presents a physical hazard or health hazard to persons who use or are exposed to such substance or mixture, including, but not limited to, pesticides, fungicides, rodenticides, herbicides, solvents, fuels, anhydrous ammonia and welding gases.
"Agricultural equipment and machinery" or "equipment and machinery." Machinery designed and used for agricultural operations, including farm tractors, choppers, balers, reapers, mowers, pickers, threshers, combines, plows, harrows, planters and any other vehicle or machine used as an implement of husbandry or multipurpose agricultural vehicle.
"Agricultural production." The production for commercial purposes of crops, livestock and livestock products. The term includes the processing or retail marketing of such crops, livestock or livestock products if more than 50% of the processed or merchandised products are produced by the farmer.
"Agriculture and rural youth organization." As used in this act, the term shall have the meaning given to it under the act of August 6, 1991 (P.L. 326, No. 33) , known as the Agriculture and Rural Youth Development Act.
"Department." The Department of Agriculture of the Commonwealth.
"Emergency service provider." Any employee, agent, member or officer of a paid or volunteer fire company, ambulance service or rescue squad located in this Commonwealth which is regularly engaged in providing emergency medical care and transportation, fire protection services or rescue services.
"Farm." Land in this Commonwealth which is being used for agricultural production, including all farm structures, buildings, facilities and farm family residences situated on such land.
"Farm safety and occupational health best management practices." A group of practices, methods or processes determined by the Secretary of Agriculture to be reasonably necessary or appropriate to provide safe and healthful working conditions on farms.
"Farm safety committee." A committee formed by a group of farmers or by a farmer for the purpose of detecting and reducing or eliminating the unsafe working conditions and occupational hazards which may exist on a farm or group of farms.
"Farmer." A person who is engaged in agricultural production for commercial purposes.
"Occupational disease." As used in this act, the term shall have the meaning given to it under the act of June 2, 1915 (P.L. 736, No. 338), known as the Workers' Compensation Act.
"Occupational injury." As used in this act, the term shall mean an injury as used in the act of June 2, 1915 (P.L. 736, No. 338), known as the Workers' Compensation Act.
"PEMA." The Pennsylvania Emergency Management Agency.
"Secretary." The Secretary of Agriculture of the Commonwealth.
"SWIF." The State Workmen's Insurance Fund.
"Toxic gases." Any manmade or naturally occurring gaseous compound which presents a health hazard or physical hazard to any person who uses or is exposed to such compound on a farm, including, but not limited to, gaseous compounds created from the natural decomposition of organic matter in confined spaces or otherwise on a farm such as methane, nitrogen dioxide, carbon dioxide, ammonia and hydrogen sulfide.
3 P.S. § 1902