U.S. EPA & CARB*
TIER 4 FINAL AND EU STAGE V

Caterpillar provides U.S. Environmental Protection Agency (EPA) Tier 4 Final, European Union (EU) Stage V or equivalent products in North America, Europe and select regions around the world. Product improvements in each segment provide customers with cost-saving benefits of improved fuel efficiency and fuel flexibility.

While Tier 4 Final and Stage V regulations are different, Cat mining trucks employ a common hardware solution to meet both. Every engine is equipped with a combination of proven electronic, fuel, air and aftertreatment components, based on engine size, application and the geographic location in which it will work.

U.S. EPA regulations define specific limits for:

• Particulate matter (PM)
• Non-methane hydrocarbons (NMHC)
• Nitrogen oxides (NO_x)
• Carbon monoxide (CO)

Canada's Off-Road Compression Ignition Engine Regulations have the same emission limits as U.S. EPA.

*California Air Resources Board Tier 4 Final: Limited Model Availability

FUEL OPTIMIZED / U.S. EPA TIER 2 EQUIVALENT

Fuel optimized / U.S. EPA Tier 2 equivalent engines have lower particulate matter (PM), hydrocarbons (HC), nitrogen oxides (NO_x) and carbon monoxide (CO) in comparison to U. S. EPA Tier 1 and non-regulated engines. This improves mine site air quality.

NOTE: Continuous support is available for in-service machines.