163.11—Compliance assessment and other audit procedures.

(a) Conduct of a Customs compliance assessment or other audit. In conducting a compliance assessment or other audit, the Customs auditors, except as otherwise provided in paragraph (c) of this section, shall:
(1) Provide notice, telephonically and in writing, to the person who is to be the subject of the compliance assessment or other audit, in advance of the compliance assessment or other audit and with a reasonable estimate of the time to be required for the compliance assessment or other audit;
(2) Inform the person who is to be the subject of the compliance assessment or other audit, in writing and before commencing the compliance assessment or other audit, of his right to an entry conference at which time the objectives and records requirements of the compliance assessment or other audit will be explained and the estimated termination date will be set;
(3) Provide a further estimate of any additional time for the compliance assessment or other audit if, in the course of the compliance assessment or other audit, it becomes apparent that additional time will be required;
(4) Schedule a closing conference upon completion of the compliance assessment or other audit on-site work to explain the preliminary results of the compliance assessment or other audit;
(5) Complete a formal written compliance assessment or other audit report within 90 calendar days following the closing conference referred to in paragraph (a)(4) of this section, unless the Executive Director, Regulatory Audit, Office of International Trade, at CBP Headquarters provides written notice to the person who was the subject of the compliance assessment or other audit of the reason for any delay and the anticipated completion date; and
(6) After application of any exemption contained in 5 U.S.C. 552, send a copy of the formal written compliance assessment or other audit report to the person who was the subject of the compliance assessment or other audit within 30 calendar days following completion of the report.
(b) Petition procedures for failure to conduct closing conference. Except as otherwise provided in paragraph (c) of this section, if the estimated or actual termination date for a compliance assessment or other audit passes without a CBP auditor providing a closing conference to explain the results of the compliance assessment or other audit, the person who was the subject of the compliance assessment or other audit may petition in writing for such a conference to the Executive Director, Regulatory Audit, Office of International Trade, U.S. Customs and Border Protection, Washington, DC 20229. Upon receipt of such a request, the Director shall provide for such a conference to be held within 15 calendar days after the date of receipt.
(c) Exception to procedures. Paragraphs (a)(5), (a)(6) and (b) of this section shall not apply after Customs commences a formal investigation with respect to the issue involved.