When does a revised edition of a model code take effect?

When does a revised edition of a model code take effect?

• A. After public comment period
• B. Immediate upon publication
• C. At the start of the fiscal year
• D. When it is formally and legally adopted

Answer: (D)

A revised edition takes effect when it is formally and legally adopted by the jurisdiction. Model codes exist as templates, but they become enforceable only after the adopting authority—such as a city, county, or state—passes the adoption (often via a resolution or ordinance) and sets an effective date. Publication or a public comment period happens during development, not at the moment it becomes binding. Some places may later implement a grace period or staged adoption, but the binding moment is the formal adoption by the authority.

A revised edition takes effect when it is formally and legally adopted by the jurisdiction. Model codes exist as templates, but they become enforceable only after the adopting authority—such as a city, county, or state—passes the adoption (often via a resolution or ordinance) and sets an effective date. Publication or a public comment period happens during development, not at the moment it becomes binding. Some places may later implement a grace period or staged adoption, but the binding moment is the formal adoption by the authority.