On July 6, 2005, the Chief Counsel issued a Default Order to Mainland Investment Group d/b/a Tech Air finding the company had knowingly committed four violations of the Hazardous Materials Regulations (HMR), 49 C.F.R. Parts 171-180. The Default Order, which is incorporated by reference, assessed the $7,775 civil penalty proposed in the Notice of Probable Violation (Notice), dated February 15, 2005. Because Respondent received actual notice of the probable violations and failed to respond, Respondent's appeal is denied.