Quality Control Review on a Single Audit of the Riverside County Transportation Commission, Riverside, CA

What We Looked At We performed a quality control review (QCR) on the single audit that Macias Gini O'Connell LLP (MGO) performed for the Riverside County Transportation Commission's (Commission) fiscal year that ended June 30, 2017. During this period, the Commission expended approximately $438 million from the U.S. Department of Transportation's (DOT) grant programs. MGO determined that DOT's major programs were the Transportation Infrastructure Finance and Innovation Act program and the High-Speed Rail Corridors and Intercity Passenger Rail Service Capital Assistance program. Our QCR objectives were to determine whether (1) the audit work complied with the Single Audit Act of 1984, as amended, the Office of Management and Budget's Uniform Guidance, and the extent to which we could rely on the auditors' work on DOT's major programs; and (2) the Commission's reporting package complied with the reporting requirements of the Uniform Guidance. What We Found MGO's audit work complied with the requirements of the Single Audit Act, the Uniform Guidance, and DOT's major programs. In addition, we found nothing to indicate that MGO's opinion on each of DOT's major programs was inappropriate or unreliable. However, we identified deficiencies in the Commission's reporting package that required correction and resubmission.