Operation Manual
Page 43
... and the Air Index. For Phase 2 certified engines, the Emissions Compliance Period referred to on our emission labels. For engines less than 225 cc displacement, Category C = 125 hours, B = 250 hours and A = 500 hours. The Air index is a generic representation of actual engine... shown to meet the United States Environmental Protection Agency (USEPA) Phase 2 emission standards. For example, a typical walk-behind lawn mower is certified to be certified to meet Federal emission requirements. This information is certified to be emissions compliant, assuming proper maintenance ...
... and the Air Index. For Phase 2 certified engines, the Emissions Compliance Period referred to on our emission labels. For engines less than 225 cc displacement, Category C = 125 hours, B = 250 hours and A = 500 hours. The Air index is a generic representation of actual engine... shown to meet the United States Environmental Protection Agency (USEPA) Phase 2 emission standards. For example, a typical walk-behind lawn mower is certified to be certified to meet Federal emission requirements. This information is certified to be emissions compliant, assuming proper maintenance ...