Building codes are:

Building codes are:

• A. Adopted by Regions
• B. Mandated by the National Fire Protection Agency
• C. Adopted by the Authority Having Jurisdiction
• D. Mandated by the Uniform Building Code

Answer: (C)

Building codes become enforceable law only after a local authority approves them. The Authority Having Jurisdiction, such as a city or county government (or its designated official), is the body that adopts model codes and enforces them through permits, inspections, and enforcement actions. They may adopt a national or international model code and tailor it with local amendments, and that adopted code then governs construction and safety in that area. That’s why the correct idea is that building codes are adopted by the Authority Having Jurisdiction: they hold the legal authority to adopt, modify if needed, and enforce the codes locally. The other options describe entities that influence or create standards but do not by themselves enforce or mandate local codes. NFPA produces standards, not enforceable law unless the AHJ adopts them. Regions may adopt codes, but enforcement still comes from the AHJ. The Uniform Building Code was a model code from the past and isn’t universally mandated today.

Building codes become enforceable law only after a local authority approves them. The Authority Having Jurisdiction, such as a city or county government (or its designated official), is the body that adopts model codes and enforces them through permits, inspections, and enforcement actions. They may adopt a national or international model code and tailor it with local amendments, and that adopted code then governs construction and safety in that area.

That’s why the correct idea is that building codes are adopted by the Authority Having Jurisdiction: they hold the legal authority to adopt, modify if needed, and enforce the codes locally. The other options describe entities that influence or create standards but do not by themselves enforce or mandate local codes. NFPA produces standards, not enforceable law unless the AHJ adopts them. Regions may adopt codes, but enforcement still comes from the AHJ. The Uniform Building Code was a model code from the past and isn’t universally mandated today.