Which comments field in an MLS listing may contain gate, lockbox, and security code information...

The brokerage operations/MLS compliance section explains that sensitive showing instructions—such as gate codes, lockbox combinations, alarm details, and security instructions—must not appear in public-facing remarks. With the seller’s written permission, these details, when necessary, may be placed only in “Private” (Agent) Remarks, which are visible to MLS participants/subscribers (licensees) but not to the public. This protects seller security and complies with MLS rules and professional standards on advertising and confidentiality.

References (Course Outline/Study Topics):

Maryland 60-Hour Principles and Practices of Real Estate Pre-Licensing Course — “Real Estate Brokerage Operations” (MLS usage and compliance: public vs. private/agent remarks, confidentiality, seller permissions for showing/access instructions).