; (2) conduct, after notice, any necessary and appropriate hearing or audit under rules prescribed by the Secretary; and (3) administer oaths and issue subpoenas in conducting such proceedings. (i) Civil penalties (1) Failure to comply with applicable law, rules or regulations, or to permit inspection (A) In general Except as provided in subparagraph (B), a person shall be liable for a penalty of up to $500 per violation for each day the violation continues, dating from the date of the notice or report, if the person— (i) after due notice of violation or after the violation has been reported under subparagraph (B)(i), fails or refuses to comply with any requirement of this title or section 403 or any rule or regulation under this title or section 403; or (ii) fails or refuses to permit inspection authorized under this title. (B) Exceptions A penalty under this paragraph may not be applied to any person who is otherwise liable for a violation of subparagraph (A) if— (i) the violation was discovered and reported to the Secretary or the authorized representative of the Secretary by the liable person and corrected within 20 days after the report (or such longer period to which the Secretary may agree)