Justification and Approval for sole source award to AECOM for them to proivde all necesary expert services, to include an IPA, necessary to perform a SOC 1 examination, following all AICPA standards a... Justification and Approval for sole source award to AECOM for them to proivde all necesary expert services, to include an IPA, necessary to perform a SOC 1 examination, following all AICPA standards and mandates, for RACER and the EDR/PP Utility and to provide the appropriate reports and deliverables associated with the audit.