If there appears to be a failure or threatened failure to comply with any of the provisions of this part, and if the noncompliance or threatened noncompliance cannot be corrected by voluntary means, compliance with this part may be effected by the suspension, termination of, or refusal to grant or to continue Federal financial assistance, or by any other means authorized by law. Such other means may include, but are not limited to:

(a) Referral to the Department of Justice with a recommendation that appropriate proceedings be brought to enforce any rights of the United States under any law including the Civil Rights Act of 1964, other statutes to which this part applies, or any assurance or other contractual undertaking; and

(b) Any applicable proceeding under State or local law.