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Automotive Emissions – Regulations and Aftermarket Catalysts

October 18, 2013

Aftermarket catalytic converters have been federally regulated by the U.S. Environmental Protection Agency (EPA) since 1986.  Although California followed suit in 1988, today the California Air Resources Board’s (CARB) performance standards are more stringent than the EPA’s in accordance with its well-publicized and successful campaign against air pollution and its effect on public health.  The requirements for HC/CO/NOx conversion efficiencies and mileage limits for original equipment as well as California and Federal aftermarket converters are shown below:

Original equipment                                       97/85/97*                          100-120,000 miles

CARB (OBD) – aftermarket                          96/83/96*                           50,000 miles

CARB (non-OBD) – aftermarket                  70/70/60*                           50,000 miles

EPA – aftermarket                                           70/70/50*                           25,000 miles

* Percent Conversion of HC/CO/NOx
OBD – On-Board Diagnostics

The CARB warranty is 50,000 miles while the EPA’s 25,000-mile warranty boasts a substantial cost savings to the consumer.  The State of New York is the only other state that has adopted the CARB standards for new aftermarket catalytic converters, but has delayed enforcement until January 1, 2014.  Other states, like Maine, has also announced plans to also adopt the CARB catalytic converter regulations, but has delayed implementation to June 1, 2015.

Here at Hypercat ACP, we manufacture Three-Way aftermarket catalysts that meet emissions requirements for Hydrocarbon (HC), Carbon Monoxide (CO) and Nitrogen Oxide (NOx).  Automotive manufacturing standards are exacting and all of our catalysts are built to meet these high standards and conform to the high expectations of our customers.

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