Mo. Rev. Stat. § 59.331

59.331. Certain personal identifying information not to be included in certain documents for recording, exceptions. — The preparer of a document shall not include an individual's sensitive personal identifying information in a document that is prepared and presented for recording in the office of the recorder of deeds. "Sensitive personal identifying information" includes federal Social Security numbers, bank account numbers, and credit card account numbers. This section does not apply to state or federal tax liens, military separation or discharge papers, and other documents required by law to contain such information that are filed or recorded in the office of the recorder of deeds. Should any person's sensitive personal identifying information appear on any document prepared or submitted for recording, the preparer, submitter, or anyone in an agency relationship with the person may redact, remove, or delete the sensitive personal identifying information before submission to the recorder of deeds. Any such redaction, removal, or deletion shall not in any way affect the legal status of the transaction described in the document. The recorder of deeds shall not alter or modify any document in the official record except as otherwise provided by law.

(L. 2004 H.B. 795, et al., A.L. 2006 S.B. 932)