6 CFR § 115.202 - Auditor qualifications.
(a) An audit shall be conducted by entities or individuals outside of the agency and outside of DHS that have relevant audit experience.
(b) All auditors shall be certified by the agency, in coordination with DHS. The agency, in coordination with DHS, shall develop and issue procedures regarding the certification process, which shall include training requirements.
(c) No audit may be conducted by an auditor who has received financial compensation from the agency being audited (except for compensation received for conducting other audits, or other consulting related to detention reform) within the three years prior to the agency's retention of the auditor.
(d) The agency shall not employ, contract with, or otherwise financially compensate the auditor for three years subsequent to the agency's retention of the auditor, with the exception of contracting for subsequent audits or other consulting related to detention reform.