The Environmental Handling Fee is comprised of two portions: 1) Stewardship Ontario Oil Filter Fee and 2) Stewardship Ontario Tire Fee. The Stewardship Ontario Oil Filter Fee is either $0.50, or $1.00 depending on the size of the filter. Filters <8" in diameter carry a charge of $0.50, and Filters >=8" in diameter carry a charge of $1.00. The Stewardship Ontario Tire Fee is $5.84 for each commercial tire. If your vehicle comes with 5 tires, the total fee would be $29.20. Together these are referred to as an EHF Fee, and commonly comes to a total of $30.20.