MO Rev Stat § 362.520 (2021)
2021 Missouri Revised Statutes|Title XXIV - Business and Financial Institutions|Chapter 362 - Banks and Trust Companies|Section 362.520 - Banks may close, when — bank holiday, effect of.

Effective - 28 Aug 2005   362.520. Banks may close, when — bank holiday, effect of. — 1. Any bank or trust company organized under the laws of the state of Missouri or any national bank doing business in Missouri may remain closed on any Sunday or public holiday, as defined in section 9.010, and, in addition, on any day of the week fixed at least fifteen days in advance by the adoption of a resolution to such effect by a majority vote of the board of directors thereof, and notice thereof posted in the bank or trust company for the same time.  2. Any bank or trust company may be closed or remain closed whenever in the judgment of the directors, the president or other officer in charge, the lives or safety of the institution's employees or the institution itself would be endangered or placed in jeopardy by an emergency arising from fire, flood, storm, snow, power failure, shortage of fuel, robbery, riot or threat of riot, or similar emergency. The bank or trust company so closed shall notify the director of finance of its action and the reasons therefor within twelve hours thereafter and such bank or trust company shall reopen within twenty-four hours after such closing unless permission shall be granted by the director of finance to remain closed for a longer period of time. On all closings under this section a full report in writing shall be furnished the director of finance.  3. Any day on which a bank or trust company organized under the laws of the state of Missouri or national bank doing business in Missouri pursuant to this section remains closed shall, with respect to the bank or trust company or national bank, be deemed a holiday for the purposes of chapter 400 and amendments thereto, and the bank or trust company or national bank shall not be required to permit access to its safe-deposit vaults while it is so closed.  4. Where a contract by its terms requires the payment of money or the performance of a condition on any such day by or at such bank or trust company or national bank the payment may be made or condition performed on the next business day succeeding the day when the bank, trust company or national bank shall so remain or be closed, with the same force and effect as if made or performed in accordance with the terms of the contract.  5. A branch of any bank or trust company may be closed as provided in subsection 2 of this section, whether or not the main banking house is so closed, but the day shall not be a bank holiday as provided in subsections 3 and 4 of this section unless the main banking house is closed.  6. A branch office of any bank or trust company organized under the laws of the state of Missouri may be temporarily closed for any reasonable period of time for repairs, remodeling, or other purposes decided upon by the board of directors provided that notice of the board's resolution concerning such is both posted in the lobby and on the entrances of the affected location and supplied to the director of finance at least thirty days prior to the temporary closing. ­­-------- (L. 1947 V. I p. 310 § 1, A.L. 1965 p. 95, A.L. 1969 3d Ex. Sess. H.B. 39, A.L. 1991 H.B. 206, A.L. 2005 H.B. 707)