On January 28, 2003, EPA issued an administrative compliance order to TMAZ Holding, Inc., requiring the company to submit and, in some cases, prepare and submit testing and monitoring records and O&M plans that the company failed to properly maintain as required by the Chrome NESHAP, 40 C.F.R. Part 63, Subpart N. The order is based on alleged violations that EPA and Maricopa County inspectors noted during an inspection of chrome plating facilities in Phoenix, Arizona.