Can Standard mail contain personal information?

Standard mail, which refers to a category of mail that includes bulk mail and advertising materials, is not typically intended for carrying personal information. The Postal Service has specific guidelines to protect the privacy and security of individuals' personal data. In standard mail, which includes promotional and commercial content, specific restrictions are placed on the inclusion of personal information to maintain the safety and confidentiality of the senders and receivers.

Personal information is usually considered sensitive and may require additional safeguards, such as being sent in secure methods (like First-Class Mail) to ensure its privacy during transit. Therefore, the correct understanding that standard mail cannot contain personal information is based on these regulations aimed at protecting individual privacy standards. This ensures that standard mail remains a safe and secure option for bulk and promotional messaging, without compromising sensitive data.