12 CFR § 715.5 - Audit of Federal Credit Unions.
(a) Total assets of $500 million or greater. To fulfill its Supervisory Committee audit responsibility, a Federal credit union having total assets of $500 million or greater, except as provided in § 703.106(b)(3) of this chapter, must obtain an annual audit of its financial statements performed in accordance with Generally Accepted Auditing Standards by an independent person who is licensed to do so by the State or jurisdiction in which the credit union is principally located.
(b) Total assets of less than $500 million but more than $10 million. To fulfill its Supervisory Committee audit responsibility, a Federally-chartered credit union having total assets of less than $500 million but more than $10 million which does not choose to obtain an audit under § 715.5(a), must obtain an annual supervisory committee audit as prescribed in § 715.7.
(c) Total assets of $10 million or less. To fulfill its Supervisory Committee audit responsibility, a Federally-chartered credit union having total assets of $10 million or less must obtain an annual Supervisory Committee audit as prescribed in § 715.7.
(d) Other requirements. A federally chartered credit union, regardless of which audit it is required to obtain under this section, must meet other applicable requirements of this part.