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Tier 4

Bobcat and Tier 4 Emissions Standards

For several years Bobcat has been working hard to ensure our products are compliant to the required federal emission standards for non-road equipment. Rest assured, this discipline will certainly carry on into the future. Emission standards, such as interim Tier 4 and Tier 4, will bring changes to the way that many machines release engine exhaust into the atmosphere. This clean diesel technology will greatly reduce the levels of harmful emissions such as particulate matter (PM) and Nitrogen Oxides (NOx) that enter the air. The standards will improve air quality and public health for generations to come.

Tier 4 and the History of Emissions Standards

To help you better understand how the compact equipment industry will adopt Tier 4 and clean diesel technologies, Bobcat encourages you to learn about the history of emissions reductions.

As you'll see, the path to Tier 4 began more than 60 years ago. The standards for compact equipment reflect an ongoing emphasis to promote human health and a sustainable environment for future generations. Several key events and milestones have led to today's efforts.

Where does Tier 4 come from?

All emissions standards, including Tier 4, are a part of a federal law named the Clean Air Act. The purpose of this law is to reduce air pollution because of its hazards to human health and the environment. The Clean Air Act is managed and regulated by a national organization known as the Environmental Protection Agency (EPA).

Why did the federal government create the EPA and pass the Clean Air Act?

In the 1940s and 1950s, several world events (see below timeline) heightened awareness of the human and environmental hazards of air pollution. Over the next two decades, Congress took several steps to create emissions standards in various industries.