; and (ii) all other information obtained under paragraph (1) from such worker, firm, or customer on which the Secretary relies in making a determination under section 213, unless the Secretary has a reasonable basis for determining that such information is accurate and complete without being certified. (B) Use of subpoenas (i) In general Except as provided in clause (ii), if a worker, applicable firm, or customer of such firm fails to provide information requested by the Secretary under paragraph (1) within 20 days after the date of such request, the Secretary shall obtain such information by subpoena in accordance with section 214. (ii) Exception The requirement under clause (i) shall not apply if the worker, applicable firm, or customer of such firm demonstrates to the satisfaction of the Secretary that such worker, firm, or customer will provide the information within a reasonable period of time. (C) Protection of confidential information (i) In general The Secretary may not release information obtained under paragraph (1) that the Secretary considers to be confidential business information or personally identifiable information unless the worker, applicable firm, or customer whose information is at issue had notice, at the time of submission, that the information would be released by the Secretary, or such worker, applicable firm, or customer subsequently consents to the release of the information. (ii) Exception Nothing in this subparagraph prohibits the Secretary from providing the confidential business information described in clause (i) to a court in camera or to another party under a protective order issued by a court. 213. Determinations and certifications (a) In general As soon as practicable after the date on which a petition is filed under section 211 and, subject to subsection (e), not later than 40 days after that date, the Secretary shall— (1) determine whether the petitioning group meets the requirements under section 212(a)