When do the provisions in an appendix of the residential code become enforceable in a jurisdiction?
- Automatically, whenever the main body of the code has been adopted
- Whenever the building official decides to apply them to a project
- Only when the owner agrees to them on the permit application
- Only when the adopting ordinance specifically adopts that appendix
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D. Only when the adopting ordinance specifically adopts that appendix
Appendix chapters are not part of the enforceable code unless the jurisdiction names them in its adopting ordinance. Adoption of the main body alone does not bring them in, and the building official cannot adopt them by choice.
Reference: IRC 2021, Chapter 1 (Scope and Administration): appendices
An inspector wants to see how the footing, foundation wall, sill plate, floor framing and wall framing fit together vertically. Which drawing shows this best?
- A floor plan
- A site plan
- A window schedule
- A wall section
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D. A wall section
A section is a vertical cut through the building that shows how components stack and connect from footing to roof. A floor plan shows horizontal layout and cannot show the vertical assembly.
Reference: Construction drawing conventions (plan reading): sections and details
Which statement correctly describes the building official's authority to interpret the code?
- May interpret the code, but may not waive its requirements
- May waive any requirement when the owner accepts the risk in writing
- May interpret the code only after a ruling by the board of appeals
- May waive requirements for owner-occupied single-family dwellings
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A. May interpret the code, but may not waive its requirements
The building official enforces the code, renders interpretations and adopts procedures that clarify how it is applied, but those interpretations must be consistent with the code's intent and cannot waive requirements. An owner's written acceptance of risk does not create that power.
Reference: IRC 2021, Chapter 1 (Scope and Administration): duties and powers of the building official