The California Air Resources Board says Bloomington, Minn.-based Thermo King Corp. has paid a $213,200 penalty in connection with violating state air pollution laws.
ARB said the temperature-control systems manufacturer sold diesel particulate filters after conditional verification expired.
The filters are used to reduce emissions from auxiliary power units, which enable heavy duty trucks to use air conditioning, heat and other functions without engine idling.
While conditional verifications give manufacturers some flexibility in complying with California emissions-reduction requirements, they expire after a given time period. Full verification is granted upon meeting the full range of state standards.
ARB said Thermo King continued to sell filters after conditional verification expired in 2011.
Under a settlement, ARB said Thermo King agreed to pay $213,200 to the California Air Pollution Control Fund, created to support clean air research.
Call The Bee's Mark Glover, (916) 321-1184.