Two interstate companies operating heavy-duty truck fleets in California agreed to legal settlements with the U.S. Environmental Protection Agency after being accused of violating California law by failing to install air pollution controls, upgrade model year engines, or verify their trucks complied with state rules.

“Holding companies accountable protects the environment and public health, particularly among overburdened California communities that are bearing the brunt of pollution from diesel-fueled, heavy-duty trucks,” declared Martha Guzman, EPA Pacific Southwest administrator.

She added that national truck fleets operating within California “need to comply with our state’s truck and bus rule that regulates dangerous air pollution.”