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Get Ready for RICE NESHAP Compliance

RICE: Reciprocating Internal Combustion Engine
NESHAP: National Emission Standards for Hazardous Air Pollutants

Johnson Matthey has a complete line of HAPs catalytic converters to fit your small, medium or large diesel or gas engine.

TheĀ HAPĀ GUARD™ exhaust monitor will ensure that your catalytic converter is operating properly to meet the emission limits required by the HAPs Rule.

We know catalysts and we know stationary engines. Johnson Matthey has been around since 1817 (almost 200 years) and they introduced the original Hatchback catalytic converter - the first converter to allow easy access to the catalyst element. Johnson Matthey continues to improve their products and has optimized the HAPs converter products for you. Johnson Matthey's quality and service are unmatched.

MurCal and Johnson Matthey are your one source for RICE NESHAP compliance! Let us take it from here. We'll simplify your solution so that you can focus on your day-to-day operations.

rice neshap HAPGuard Exhaust Monitor


The RICE NESHAP (Reciprocating Internal Combustion Engine National Emission Standards for Hazardous Air Pollutants) sets the limits for emissions of formaldehyde, acetaldehyde, acrolein, methanol and nearly 200 other toxic compounds from stationary diesel and gas engines, using formaldehyde as the regulated emission.

The EPA estimates that more than a million stationary gas and diesel engines at major and area sources may be affected by this rule and has set the following dates for compliance:

    •   Non-Emergency Diesel (CI) Engines by May 13, 2013.

    •   Non-Emergency Gas (SI) Engines by October 13, 2013.

The EPA has determined that carbon monoxide (CO) can be used as an appropriate surrogate for formaldehyde. Since testing for CO emissions has many advantages over testing for emissions of HAPs, most of the emission standards have been finalized in terms of CO as the only regulated pollutant.


Download information below for EPA RICE NESHAP in PDF format:

rice neshap compliance chart

EPA RICE NESHAP for Existing Stationary Gas & Diesel Engines
Compliance Chart