Final answer:
The disclosure of PII that is NOT permitted is sharing with third parties for marketing purposes, as it typically requires explicit consent from the individual. Disclosures for official use, legitimate need within an organization, or as required by law are generally permitted under the Privacy Act of 1974.
Step-by-step explanation:
Among the options listed, sharing with third parties for marketing purposes is NOT a permitted disclosure of Personally Identifiable Information (PII) contained in a system of records. The Privacy Act of 1974 governs the handling of PII and restricts its disclosure without the consent of the individual to whom the information pertains. Sharing PII for official purposes or with individuals who have a legitimate need to know within the organization are generally permitted under the act and its system of records provision. Additionally, sharing with law enforcement agencies as required by law is also a legitimate and often necessary action, especially if it's to comply with legal obligations or for the administration of justice.
However, sharing PII for marketing purposes does not fall under the permitted uses and would typically require explicit consent from the individual. Unauthorized disclosure for commercial benefits can undermine an individual's privacy rights and may lead to sanctions or legal action against the entity responsible for the breach. This aligns with the principles of data protection that emphasize the need for privacy and security regarding personal and sensitive information.