When must a copy of the order be posted on the building site?

A copy of the order must be posted on the building site after it has been served to the relevant parties. This requirement ensures that all individuals involved with or affected by the construction activities, including contractors and workers, are aware of the order and can comply with its directives. Posting the order serves as a public notification, making it clear that there are specific compliance requirements or restrictions that need to be followed on the site. This practice helps maintain transparency and facilitates proper communication about obligations that arise from the order.

In this context, posting the order prior to any legal action is not a requirement because the legal process may not be initiated immediately after service, yet the compliance notification still needs to be visibly communicated on-site. Similarly, the need to post the order upon the arrival of the chief building official or only if the property owner protests does not align with the procedural requirements for ensuring that everyone associated with the site is informed after the order is formally served. Thus, serving the relevant parties first establishes the timeline for posting to ensure compliance and awareness among all stakeholders involved.