The provisions of the appendices do not apply unless _____.

The provisions of the appendices in the plumbing code are designed to provide additional guidelines and information that support the main regulations. However, these appendices are not automatically valid or enforceable unless they have been specifically adopted by the governing body or incorporated into the regulations that are being followed. This means that just having appendices available does not mean they are in effect; there must be an explicit decision to make them applicable.

This concept ensures that only those additional provisions that are deemed necessary and relevant to the local context are utilized, thus maintaining clarity and consistency in plumbing practices. In practice, this allows jurisdictions to tailor code enforcement to their specific needs without automatically including all appendices, which may not be relevant or necessary for a given area.