Required department records shall be retained _____.

The retention of required department records is often dictated by public record laws and administrative codes. Retaining records as required for public record ensures that important information remains accessible for future reference and accountability. This option aligns with the principles of transparency and compliance with legal standards that govern how documentation must be handled in the plumbing industry.

Public records laws typically mandate retention periods varying by document type, but the emphasis is on maintaining access to information that serves the public interest. Therefore, having records retained based on public record requirements means that they are preserved in a structured manner which facilitates proper review, inspection, and potential audits. This is crucial in the plumbing practice, as it ensures all work is compliant with regulations and can be verified if necessary.

Other options suggest different scenarios for retention, such as permanence or conditions specified by a code official, which might not cover the broader legal obligations for public accessibility. The focus on maintaining records for public records is critical for upholding good governance and operational integrity within the plumbing industry.