New Holland Construction Tier 4 - A Cleaner Future Built Around You, Our emissions compliance technologies

Emissions regulations: what is this about?

Climate change and air quality are at the top of the agenda for governments and cities around the world. The United States Environmental Protection Agency (EPA) introduced emissions standards in 1996 to regulate pollutants released by vehicle engines and industry. The regulations have been phased in stages setting increasingly stringent targets.

The biggest step towards near-zero emissions

Click here to zoom the image

The emissions standards focus on reducing levels of the main pollutants released by diesel engines: nitrogen oxides (NOx) and particulate matter (PM). Since 1996, levels of NOx and PM have been reduced by approximately six percent. The biggest reduction will come with EPA Tier 4 interim and final standards, which mandate a 90 percent drop in PM and NOx.