(1) In general. In the case of a failure to comply with the requirements of
section 6104(d), relating to public inspection of private foundations' annual returns, within the time and in the manner prescribed for complying with
section 6104(d), unless it is shown that such failure is due to reasonable cause, there shall be paid by the person or persons responsible for failing to comply with
section 6104(d) $10 for each day during which such failure continues. However, the total amount imposed under this subparagraph on all persons responsible for any such failure with regard to any one annual return shall not exceed $5,000.