In light of the U.S. EPA saying it is following up with Mitsubishi over an MPG data reporting scandal in Japan, the automaker’s U.S. arm said its cars are clean.

This disclosure came today in a statement by Mitsubishi North America confirming it is working with U.S. authorities and has internally audited its vehicles several model years back.

SEE ALSO: As MPG Cheating Scandal Unfolds in Japan, US EPA Increases Vigilance On Mitsubishi

The cars in question to date have been an estimated 625,000 Japan-only minicars, about three-quarters of which have been supplied by Nissan. The improprieties in how Mitsubishi in Japan attains and reports mpg data to regulators stems back 25 years.

Its president has said the company’s future is at stake.

On the green car front, Mitsubishi’s now-often dismissed i-MiEV (pictured) predates the Chevy Volt, Nissan Leaf, and Niossan was an early pioneer in electrification. Its Outlander PHEV has been Europe’s best-selling plug-in electrified vehicle, and is promised for this fall to the U.S.

SEE ALSO: Reviving Mitsubishi Bringing At Least Three New Plug-in Vehicles To US In Next Five Years

Mitsubishi has made other forward looking statements for the U.S that it will introduce several more electrified vehicles, including in categories such as SUV and crossover that Americans have asked major manufacturers to make.

Following is the automaker’s statement in full.

Mitsubishi Motors Corporation in Tokyo recently announced irregularities concerning fuel consumption testing data.

To confirm that U.S. market vehicles are not affected by this issue, Mitsubishi Motors R&D America, Inc., working together with Mitsubishi Motors Corporation, proactively conducted an internal audit of U.S. market vehicles going back several model years to check previously submitted data to the EPA. After a thorough review of all 2013MY – 2017MY vehicles sold in the United States, we have determined that none of these vehicles are affected. Our findings confirm that fuel economy testing data for these U.S. market vehicles is accurate and complies with established EPA procedures.

An entirely different system is used for the United States market to determine what the EPA calls Road Load Coefficient, strictly adhering to EPA procedures. The data generated is then independently verified for its accuracy before being submitted to the EPA for their fuel economy testing. MMNA has shared this information with EPA, California Air Resources Board and DOT.

Mitsubishi Motors Corporation has acted quickly to address this issue and is putting in place a committee of external experts to thoroughly and objectively continue this investigation. The results of the investigation, once completed, will be made public.

Mitsubishi Motors Corporation is also working closely with the Japanese Government to fully review the implications of this issue, and to discuss potential resolutions.