ATHENS, Ga. — Carrier Transicold says its optional engine emissions system (EES) designed to comply with California’s stringent emissions standards has been CARB-approved.

The EES reduces diesel particulate mass from trailer refrigeration units by more than 90%, according to the company. Carrier says its EES is the first OEM-developed CARB level 3+ verified diesel emissions control (VDEC) device for trailer refrigeration units that can be included with the initial purchase of the TRU or added later for users who don’t initially require it.

“Carrier Transicold’s latest trailer refrigeration unit engines are already certified for ‘evergreen’ compliance with the 2013 EPA Tier 4 standard for engines less than 25 horsepower, allowing for indefinite use throughout North America, except in California,” said David Kiefer, director of marketing and product management, Carrier Transicold. “In California, CARB uniquely requires that a VDEC strategy be applied to units in this horsepower class for use in the state beyond the initial seven years.”

“CARB conditional verification validates the operation and effectiveness of the EES in Carrier’s 2013 Tier 4 refrigeration units,” Kiefer added. “This is a major milestone. It is the first and biggest step toward offering a broader array of CARB-compliant options to our customers.” 

The EES can be used on Carrier Transicold’s new Tier 4 products. For more information, visit www.carrier.com/ecoforward.