What does "approved" mean in relation to a code?

In the context of codes, "approved" refers specifically to being "acceptable to the authority having jurisdiction." This means that a code or standard has met the requirements set forth by the local government or regulatory body responsible for enforcing building codes and safety regulations.

Approval from the authority having jurisdiction signifies that the code complies with legal and safety standards, ensuring that construction and installation practices adhere to established guidelines that protect public health and safety. This ensures that any work done is not only legal but also aligns with the necessary requirements for safety, quality, and efficacy.

While acceptance by the client, approval by a supervising engineer, and certification by an independent body are all important aspects of project implementation and compliance, they do not carry the same weight in terms of regulatory enforcement and legal acceptance as the approval from the authority having jurisdiction. This particular distinction emphasizes the importance of compliance to overarching legal standards in the construction and installation process.