49-542.04 - Arizona Statutes

49-542.04. Off-road vehicle and engine standards A. The department shall adopt rules for air pollution emission standards for off-road vehicles and engines marketed in the state beginning with the 1999 model year. B. The standards may include the following categories: 1. Heavy-duty diesel vehicles rated at 175-750 horsepower. 2. Small utility and lawn and garden equipment engines rated at less than twenty-five horsepower. 3. Recreational vehicles rated at less than twenty-five horsepower. 4. Specialty engines and go-carts rated at greater than twenty-five horsepower. 5. Off-road motorcycles and all terrain vehicles. C. In a county with a population of more than one million two hundred thousand persons according to the most recent United States decennial census, the department shall adopt rules for air pollution emission standards for golf cart engines.