EPA approves PuriNOx for on-road use
The EPA has registered Lubrizol Corp.'s PuriNOx low-emission diesel fuel for use in on-road vehicles, based on two years of health-effects testing by an independent laboratory. EPA registration enables unrestricted commercialization in the U.S. Prior to registration, market development of PuriNOx fuel had occurred under EPA's research exemption that required monitoring of all on-road usage. Registration